Tough... I seem to have a lot of keepers
IJ will never go and TAF is in the same boat for me. That game and I just have too much history.

I think AFM is overrated. I like it, but I prefer my MM and they're much too similar despite what others might say. I actually think it may be on the trade block later this year of I can find the right deal for it.

I would have agreed 6 months ago. I almost traded mine; now I wouldn't dare. I think MM comes off as very simple; leaving you wondering why it's so coveted. But, the castle is only one of the many goals in this pin. Once you've played it a lot and really gotten into this game, you might change your mind. I find a lot of negative reviews come from people who've played it a couple of times.
I think it's also so similar to AFM that you get a lot of people either preferring one or the other. AFM is faster, MM has a better theme and appearance IMO. It's a toss-up.

I like "mode" games like IJ or TAF so I had a hard time warming up to some of the repetition of MM. Also, most here won't like to admit it, but I think a lot of newer (very popular) Stern titles were modelled in some ways after games like MM. Stacking ramp goals, repetitive shot up the middle on a PF toy that eventually reveals a hidden shot... ring any bells? But none of those sell for over $10k so they don't get the criticism. Then, I don't think any pin should cost that kind of coin, so by definition I guess it is a bit "overrated" from a financial POV.

Needles to say, I've seen more BBB for sale in the last few months here than MM. Just sayin'