[gumpzilla]

The reason that I think shallower stacks make a difference has very little to do with the immediate odds or difference in his hand ranges; it's just that if you have a stack of 100 BBs or so later in the rebuy, you've probably already got a pretty nice stack and thus the gamble isn't quite as nice as if you still need to try and build up a big stack before the rebuy ends. So near the beginning of the rebuy where 100 BBs isn't too much to get excited about, go ahead and take it - it was kind of silly of me not to specify.

The 50% question is interesting. Yes, I think if I really thought that it was a neutral equity decision, I'd take it for both the reason you mention, and also because it makes a lot of sense from a $/hr perspective, particularly since this is a $5 rebuy. And I don't think the decision is stupid, just mildly unconventional.