Dumb of Nintendo to deliberately turn this game into a scarce one. Feel however you want about the limited extent to which they updated the games, you can't deny that people would still be buying this on the eShop if they could.
Anyway, a resolution-bumped and less forcibly motion-based Mario Galaxy 1 alone is worth $60, of course I think a package of that included with 64 and, sigh, Sunshine too I guess, is worth the price.