Bought an beat up AFM about 7 years ago and played it maybe 20 times before breaking it down for restoration having never played it before. For one reason or another it took like 5 years to get finished. Once I had it finished it, I put under 50 games on it before I ended up selling it. It was ok to play (somewhat on the simpler side) and had a nice camp factor but for something like that I think that MM does that a little better or I'd even probably prefer a MB if I wanted an easier game for my guests to have fun with and understand quickly (better theme, prettier art package).
The wife and I played INMDN at our local annual pinball convention and she turned and said that we should get it because it was really fun. We actually tried to buy the floor model but it was already sold. This from someone who ALWAYS gives me crap for buying new pins. Neither of us are Maiden music fans by any stretch of the imagination but she was absolutely correct, the game is a blast. It's great that the main theme follows the ancient Egyptian motif because I think it does a really good job at bridging the theme gap for anyone that isn't necessarily a big fan of their music. The animations and call outs are great and it has some fun shots/combos.