It makes me happy to watch a light show in attract mode.
....to diagnose a problem and fix it, or bring a machine back from the dead.
....to learn new skills like soldering, paint touchup, etc.
....to take rusty, dirty, or broken parts and clean, repair or replace them so my machines look & work better.
....to listen to the dinging of an EM or (especially) the electronic sound effects of an SS pin.
....to appreciate the artwork of a Morrison pin like Genie or a badass painting like Faris' Centaur backglass.
....to meet new people who share the same love for pinball.
....to relive a part of my life that I really, really enjoyed.