I've had 4 of my games fully restored CC,MB,MM,TAF and to me it was completely worth it as these games will never leave until they put me in a box and my kids sell them. I think for anyone it comes down to what's the game that you truly enjoy, and plan on keeping. If your doing it yourself, I would start with an easy project too get your feet wet before you tear into any high priced games. Unfortunatelly I took the easy way out and had Bryan Kelly restore those games for me, as I wanted the flawless. I did a whitewater myself and let me tell you that is not the one to start with, but the good thing about pinside there is a lot of people that help you along the way. Good luck and welcome too the hobby.
Topper