I gave away my SSB:M 'cause I got bored of it really fast. :dunno: I am aware that it's the best selling title on GCN, but I thought it was meh...
I can see how you would think Luigi's Mansion might be lackluster, although I really enjoyed it. But Super Mario Sunshine was excellent, in my book.
I do agree with the GBA games, though...that system has some great stuff. Golden Sun and Mario and Luigi: Superstar Saga were the most entertaining RPGs I've played since FFVII. Didn't really dig the Fire Emblem and Advance Wars, though.