What's the biggest stack you've ever seen someone have at $1/$2 NL?

[KSOT]

I reached over $1200 last night. I'm sure many people have that beat though. Lets hear your high scores and those of other people you've seen.

Also another question. Which is favorable for $1/$2, time or rake? Everywhere else I have played charges $5 per half hour per player, but the Borg takes 10% up to $4 which I liked much better. Couldn't quite figure out which one is better for the players though.