Way too much emphasis on price. Play the game/s and decide which one is more fun to you. Don't pay attention to potential re-sale value-it is a hobby-just have fun. The market is soft and might get softer-if you lose money-so be it.
X-MEN is deep and a difficult game, if you like the theme it will have more staying power-if you don't it will be just like any other game. For the money I feel it is a great bang for your buck. I have seen these sell for $4500-so may watch market.
MBR-Does not do it for me. I think my problem is I have been there done that-it feels like old hat to me. Only so many times you can bash Monsters. I would recommend a MMR before a MBR for the family.
I tell you what-I just got a TNA and the entire family is blown away. Once everyone learned the shots-they cannot get enough. It has a simple layout but it is a difficult game and has you wanting to play one more game. The music/sounds and lights are absolutely amazing and I am really impressed with it. Super fun family game