I've been using these suckers for years, and will probably never get sick of them. I learnt BASIC and then 6502/6510 machine language on the c64, and still use my c64 (actually now a c128) system. I've built a power supply to run it off a car battery (12v dc) and still use it to connect to the internet or BBS's during power shortages. I've also built an interface box which I used to control model robots from the computer, which was fun for experimenting with robotics and controlling things with a micro.