Strategy question for 1 rebuy tourneys

[greenbuckets]

I don't know if I'm missing some critical strategy for re-buys, but why change style in a re-buy as compared to a regular tournament? I play re-buys occasionally and play the same way as I do in regular tournies. If you play more aggressively by pushing in looking for a quick double up and lose...not only do you have to re-buy, but you have just put yourself at a disadvantage in chip stacks.