Very true. It just wouldn't be a good financial decision to spend $4k when $500 paid to the dealer would correct the problem.
UPDATE: I did purchase an XTool diagnostic computer (D9). I gave Autel a chance and emailed them to ask for help. I received an email back from Marvin Cooper, stating, "Thank you for contacting Autel customer support. Confirming with the engineers then i will let you know."
I waited 5 days and didn't get a reply so I emailed them again and stated I'm in a bit of a time crunch and hoping for some info from the engineering department.
Later that day I received this message back, "Yes i understand, soon as they get back to me i will let you know."
That was the last message I received from Autel. I concluded that if I'm having difficulty with support at the stage where I'm just waiting on them to make my purchase, then most likely I'm not going to have much support if needed after my purchase.
On the other hand, Xtool has been amazing every step of the way. They gave me tool options and the specific menus to go through to do the re-learning procedure. Any difficulty I've discovered in the diagnosing of 5 different vehicles so far has been quickly addressed by support.