pay $30-$50 to find out whether a game is shitty or not? I'll wait until it hits the discount bin. Just like I will with M&MX.
30 € for a MM 10 preorder + soundtrack + MM 6 is a fair price. All previews indicate it is at least a mediocre classic crpg in the tradition of MM 4-7.
Pontential for more is there. Releasing a demo version and asking the fans for enhancement suggestions is not a bad thing IMHO.