I bought a working Tron machine in 1997 at the community thrift store on half price tuesday for $12.50. I got it home and it sorta worked for a few games and then crapped out.
I hopped on the internet at work and searched for free tron emulators, and stumbled across a very early version of a certain arcade machine emulator, and kept up with it. It occurred to me almost immediately that I could "repair" my Tron with a computer and the emulator, but I didn't do anything about it for years.
The Tron machine died in a flood. Very sad. My parents thought nothing was salvagable and threw it away. Much sadder. In 2002 I found a $40 Atari Football in another thrift store, and immediately got on the internet to find parts to turn it into a Generic Arcade Machine Emulator (GAME) machine.
Found Ultimarc.
Found BYOAC.
Read BYOAC front to back a few dozen times, built my cab, and then (feeling now qualified) I got on the forums. I wish I'd been here before I maimed the A.F., Would've done a much better job.
Been here for years... try only to post something if I have something to contribute