My Parents have Star Wars (Data East), Jurassic Park (Data East), Medieval Madness (Williams), Addams Family Gold (Midway), Fireball (Bally), Elvira and Elvira Scared Stiff as well as a Mame Cabinet and a few classic arcade games.
My parents always loved Pinball and when they built their house they put an arcade in.
The main problem they have had an always had is they aren't very electronically oriented and things break quite often. You have to be able to find an electrician that is able to work on things, otherwise what my parents did is find the name of a guy that fixes vending machines and they have him over after working hours. Generally speaking every time I go to their house, one or two of the machines will have a switch broken because they guy hasn't gotten around to coming over.
I have a basic understanding of soldering and have done some more complex things (modded my ps2, which back in the day had 19 or so hard wires) and gave up after a while on the pinball machines when I lived at home. I would say the average amount of time that a machine fully works after being fixed is 10-15 hours. There are simply a lot of switches and the actual ball knocking into things makes wires come lose.
You also have to clean and wax everything quite often otherwise the playfield gets slow.
Overall, it is great fun but has to be a passion rather than something you think you can turn on and off every couple of months and have everything work.
The new Stern stuff may work a bit better however being that it is new tech inside.