For me, MM isn't over rated, it's just overpriced. It's a fun game and all, but I don't think it's $5k or $6k fun. A good shape MM can fetch $6K. CV maybe $3,800? Round that to 10K
LOTR HUO - $3,500
FGY HUO - $3,500
POTC - $3,100
I honestly think your about $2K ahead in the deal. I happen to think that LOTR and FGY are FANTASTIC games. I own Family Guy, have for a few months and I continue to love it. Also, they didn't make very many and the word is they aren't going to make any more so you never know.
MM is a great game but over priced, CV is a good game but you have to appreciate the art to make it worth it. You could sell the POTC, take the $2K cash and have 2 great games and $5K to pick up the ones you want. I dunno, I'd do it.
After reading the posts it sounds like you have quite a bit into your MM, the question is are you ever going to get out of it what you put into it?