My Wife's 2003 RAV 4 had the computer that controls the transmission go out... (it had about 120,000 miles on it) $700 to replace that and have it programmed by the dealer.. I found on the Interweb where I could get the comp for less, but it still needs to be programmed by the dealer... So, I just took it in, picked it up the next day and paid the bill...
Anyway, I had a 97 F150 and it had 255,000 miles on it when I traded it for the 13 F150.. Never a problem with the computers.
So many electronics on these vehicles now, it's a wonder we get to work on a daily basis!!
If you just want to get a new truck, then get it! That's what I did.. Nothing wrong with the 97, mechanically when I traded it... I was just wanting the new gen of truck! I wish I could have kept the 97 too, but no room to store it..
Good luck!
Mitch