Rebuy Tournament Question(s)

[Eric Draven]

This is probably a stupid question.

How many rebuys are commmon (per player) in your average rebuy tournament? I'm thinking about doing one, but don't want to put too much money out on one, or waste money on one by not rebuying enough, etc.

Also is it suggested to play supper LAG trying to build a stack, since you can keep rebuying? I've heard of Negranu and Ivey playing as such, and a few players in other posts have implied that it's not bad (Raptor comes to mind).