I think its premature to judge MSG4 sales to pref MSG games just yet.. MSG4 is still selling reasonably (And still reasonably new) well while the market for the other MSG games are long since over.
I don't think its smart to judge a game thats been out for a few months vs games that have been out for a few years and after a year or 2 of sales hit 5 million odd sales. Imo look at the trends after X period and attach-rate.







