Just buy it and try to have fun. I get stressed with maintenance because I want things to work right and I get scared that Ill break something else. But its also an awesome feeling when I fix my pin. I mean yes I could be outside doing something else, maybe saving the world, or learning judo or something, but fixing that damn broken light on my pinball machine makes me feel pretty damn good, time well spent. Look at my list of things to fix, there will always be issues, but they are fixable.

To do list:

Alien LE - fix right back egg lights
WoZ - replace both head decals, fix shaking noise with tape on playfield glass, replace legs (too many scratches)
Star Trek LE - fix ball trough and missing light right flasher (done!)
TWD LE - fix well walker switch and lower intensity shaker motor
Simpsons - Fix buzzing noise both flippers
Star Wars - replace decal left back box

I already took care of 3 items in the past 2 days!