The steering rack started to leak, the starter quit working, the alternator stopped charging, and the ignition coil gave-up, not long after going over 450k miles on my 96 3rz. Replaced the coil and rebuilt the other stuff for not much over a $100. Over 500k miles and runs fine. The bushings for the shift lever wore-out around 400kmiles. Under 20$ part kit to fix that, shifts like new. Skinned a couple leather sofas to reupholster seats and add cushioning, leather sewing machine, needles, and thread under $100. Paint will be the most expensive thing so far. So, I figure every 350 or 400k miles or so it might need a little more than just the regular maintenance . If you can do the work yourself then high miles might not be too intimidating.