Quoted from snyper2099:None of them will give any "return on investment". Pinball does not work like that. Every single play or $ you put on the game will decrease the "recovery" of your original purchase.
I’m going to say I disagree with this as a general statement. A well protected and cared for game is going to get more back. Plus it is going to be more fun to play over the years that you own it. The “recovery” of the original purchase will be mostly dictated by the market. But when someone looks at a dirty worn game, and compares it to a beautiful well kept and protected game, they will buy the good one first.
Plus, I look at pinball as a multigenerational hobby. I have games in my house that are almost 50 years old. Everything I can do to help them last another 50 is worth it. I really don’t care what you think of my game, but I care that in 2068 long after I’m dead someone might remove a Cliffy I put on my game and say “Nice shooter lane” as he puts on the new Electromagnetic Repulsion MK2 Cliffy. We are just stewards of these games during our time with them. Try to have them leave your house a bit better than they came in.