I would think that would be a viable option for Autel to be able to sell more Maxi Sys Pros and Maxi Sys Elites to people that do their research and decline to buy one of the larger because they be stuck paying all that extra money for Pro Elite updates  that cost about double what a Maxi SYS MS905 Mini update costs, and you don't see enough BMW and Mercedes Flashing to justify the extra $500 expense a Pro update going to cost you over a Mini. You might even be close to the price of a regular MS 908 (that basically offers only a larger screen, more rugged protection, and has an HDMI port)  if you just bought the Mini and bought the Maxi Flash J2534  separately to use off a windows laptop with OE 24hour subscriptions when you actually need to do programming, and the updates cost considerably less than a MS908for the same exact car coverage , be money ahead.
   I also don't see why the Maxi Sys Coding capabilities are being listed as "advanced" (other than giving you active subscription re-flashing programming capability with the J2534 device for BMW and Mercedes models  ) The DS 708 and it's successor MS906 coding capabilities  are only listed as "minimal."
 Scanner against scanner as a professional technician,  short of re-flashing modules on BMW and Mercedes, but everything else diagnostic wise a MAxi Sys Pro presently can do the older slower DS 708 ( their former flag ship )can not do? Can you list some examples of where a DS708 or MS906 doesn't offer  certain needed non J2534 subscription coding and bi-directional features that the Maxi Sys has (that works when you try it ?

    Do you really work on one and two year old cars all  that often where you  always need to update your new car coverage? My DS 708 expired back in August of 2014 and still relevant and going strong . I had made backup software SD cards  for it while it was still under free update period. I work on cars mostly 5 years and older, so if I get an occasional 3 year old car now  I'm getting to the latest coverage my expired DS 708 coverage has left to offer, so soon I need will need newer car coverage.
 If your present software on the Pro isn't corrupted and you rarely  do re flashing of modules , then just leave it as is and use the $1300 to buy a brand new MS906 off Amazon.If older coverage has not suffered , then  sell the MS908P to offset the expense. The MS906 might be a slight downgrade foregoing the Pro's wireless VCI and larger screen but it's a new fast tool, has a warranty and another 12 months of updates.
  I figure if the allegations of on going downgrading or loss of  functionality of the repair software is true and has been happening to the older car coverage, than why pay $900-$1200 to get newer car coverage for a Pro  if it might be  simultaneously compromising  some of the older car software functionality as Autel likely has to show on going progress in court compliance to either successfully re-engineer things or remove software in contention that was hacked or unlicensed to use in the past .
  I would buy a new MS 906 and leave the Pro as is with old software, and sell the Pro to offset the cost  if  the older car coverage on the MS906 doesn't disappoint and require archiving the  older Pre Optimized system software versions of a early MS908 P .

    I don't know when you first bought your  MS 908 Pro and when the software expired, but from what I read is that the software functionality was at it's best when the tablet was first released when the DS708 and Maxi Sys had all the factory  logos and the original thinly veiled Chinese Hacked factory software we all loved and bought these things for.. I don't believe the Ford Lawsuit ever had any conclusion or a favorable out come for Autel and much of the updates afterward reflect it, I believe was a smoke and mirror disappearing, and disabling of certain functions of the hack software that are in cease and desist contention over a necessary period of time in order to be in compliance by a certain dates. If  possibly  some creative work arounds could be done in time to salvage and restore certain inoperative functionality by re engineering another work around for they might deemed ok to be  restored  and called some fixes  that resulted from us sending in data logs for software problems.
  I don't believe the updating in the last year and a half  that folk did in order to  get newer car coverage was fixing more things with the older car coverage  then it seemed to be breaking with each update.
  People seem hesitant  to update now even if  their free update period is still current and free let alone having to pay $1200 for some added newer car coverage , while subtracting or disabling some valuable functionality in legal contention and slowly bleeding certain things back to OE subscription access only. The fact that Autel won't provide a hard backup of the old software on each tablet seems to tell me that ongoing court mandates have made it illegal for Autel to ever make the  older software versions accessible again .It's not Autel's fault that it's being StrapOn'd to the whipping pole. Think if I was The Main Chinaman Man I would have all the Ford Suits and ties tossed in a rice paddy and put a Scud up their car Azzs  , and Say this is OBD4 compliance from now on Western  B@tches, You build your Sh@t here cheaply , we copy and simpify all your repair software  and it's available in it's entirety and made  free to all and made so that pass through devices are no longer required after cars are out of bumper to bumper warranty, and that goes for everyone else too, otherwise you all get a Colonoscopy each time you are not all in compliance with New Chinese Mandated OBD4 Right to Repair.