mario galaxy is the true heir to the mario line, so thats fine. and it looks aweshome. i got to play it at e3 last year, and its so fun.
mario party 8 is a continuation of a line that no one here seems to care about, but it sells very well in japan and europe, so they keep mass producing them. supposedly, this one is going to get much more involved in minigames and make good use of the controller, so i might rent it, but... traditionally, they're crap.
mario strikers is part of the "nintendo sports" line (baseball, tennis, golf, soccer, etc), where the whole crew gets out there and plays with a varied amount of power ups. its really in the same vein as the smash bros titles, tho focusing more on the mario universe. typically very fun, but not great representations of whatever sport they're utilizing.
the mario / sonic olympics game sounds great!!! sincerely, 1992. ... honestly, it could be fun, or it could be crap. i haven't heard or seen anything about it, other than the announcement.
is it overusing the franchise/character? perspective, i guess. really, in the past 10 years, its like we're sorta done with "new games." everything is a sequel. tekken is on 6, resident evil is on like 15, madden and wwe games have a new title every year, and sometimes more! if they sell, who can blame them?
