Mine was someplace above 48 thousand. That's due entirely to the fact that I left GB before the quests and didn't return until a few months after they were released.
Slowest completion: Broken Toys at 11,308 Fastest Completion: Lovin' Cup at 22. Like PsEG, surprised at how quick I knocked it out knowing almost nothing about soccer. Should be Hell, It's About Time, but I watched only 5 and waited a few hours in hopes that the glitch would get fixed (ended up 24)
Either way, I'm SO looking forward to this game. I'll probably wait a few weeks after the Wii release to see if anything official is announced as I would prefer it on the 360, but at the least I will own the game :).