Quoted from Bizzenya:
Maybe my area is different, but $1 per play is going to turn off a lot of people. I personally wouldn't frequent a place charging $1 a game and I only play on location. On new titles sure, but for pretty much anything else $0.75 a game will probably bring in more volume. Heck at a truck stop I like to go to, the most popular game is Metallica simply because it is set to $0.50 a play. I think your prices are on the low end of what I see out on location, with the level of maintenance you are talking about it is unheard of.
I think $0.75 per game on everything, but keep one priced at $0.50 to keep the cheapskates playing. You might be able to get away with $1 per game on a new game if there are a lot of more knowledgeable pinball players who come in. Otherwise, the only thing that will make Ghostbusters stand out to a new player is the higher price tag. JJP's games could probably get away with being $1 when new, but even then most of the ones I see on location drop down to $0.75 pretty quick.
This is the reality in Tucson. I have a location with 8 machines and they are all priced at .50 a play, but with no bonus buy. The replay scores are tough, but reachable, and all but Mario has the extra balls turned off. Mario can't, or it would be as well. I run a lot of events, and I don't feel like turning all the EBs on and off all the time, so that's how things are. My friend has a location with ~30 machines and it's .75 for A-listers and new Sterns, .50 for other DMDs and SS, and .25 for EMs.
Mine is a hobby business and his is his real job. I know in Phoenix, new games are $1 or $2/3 in most areas. There are a few newer places though and I don't know what their pricing is.