I never understood why people get concerned about holding onto a game for years. I cycle through them like underwear and I have a five game collection.
I played afm on location and wasn't impressed. May need to give it more time. I borrowed a buddies mmr for about a month. Fun game and reminds me of mb because you have to complete things in order to increase jackpots. I bought a mb about two weeks ago and love it. Yeah, not the hardest game but I only beat it once. It is a perfect balance of fun, difficulty, theme. I think mm is slightly harder as I never got to the end. The issues with mm is the scoring is a bit unbalanced and shooting the castle is easy. There aren't easy shots like that in mb other than Frankenstein and you don't want to hit him until you complete everything else. So the challenge is not hitting him.
Plan on getting them all and cycle through them. Buy them right and you won't lose money. Never understood why people get married to titles unless they really love the game. If not, move it along.