The only difference I see with the tournament buy in is that this tournament is probably softer than a higher buy in and so you can pass up more marginal +ev spots. You can definitely choose to ignore ICM because of the stakes but just calling because it's micro stakes seems absurd to me.

So I would stove against whatever you think his likely range is, eg:

	equity 	win 	tie 	      pots won 	pots tied	
Hand 0: 	52.955%  	44.25% 	08.70% 	     491021952 	 96548610.00   { AKo }
Hand 1: 	47.045%  	38.34% 	08.70% 	     425453820 	 96548610.00   { JJ-77, AJs+, AQo+ }

So in this case we are 53% against his range with slightly better than even odds. Now just decide if this is a big enough edge to take. When you call and win you have a big stack and can maybe pick up chips by applying pressure (depending on how the table is playing), if you lose you are out.

Personally I would pass up here expecting to find better spots.

If you are saying that because this is micro stakes then he can be wider etc then yes that's fine. My point is that you still have to work out (long hand or estimate at the time) how you are doing against his range and base your decision on that. Just getting it in purely because of the buy in is a mistake in my opinion.

If we are (as in my example) a 53% favourite against his range then I stand by my comment that I would pass it up. We are in very good shape here, why basically slightly better than a flip at this stage when losing it guarantees we are out the tournament, winning it doesn't double our cev?

This isn't fairytales Brent, it is trying to estimate our edge against the field and from that working out which spots we should take and which we should pass. This is one we can certainly pass if we choose.

hey Tom,
so with your range we are a 59% favourite:
	equity 	win 	tie 	      pots won 	pots tied
Hand 0: 	41.232%  	31.65% 	09.58% 	     331699752 	100384446.00   { TT-88, AJs+, AJo+ }
Hand 1: 	58.768%  	49.19% 	09.58% 	     515461404 	100384446.00   { AKo }
 
in which case I agree that this would be a clear call. So long as we base our decision here on how we fare against his range I don't mind!
 
OK, so here is how we do against the 2 ranges with some hands.
 
                      88    99    TT   JJ    AQo   AQs   AKo   AKs
88-TT, AJ0+, AJs+     47%   54%   61%  66%   47%   50%   59%   61%
77-JJ, AQo+, AJs+     46%   53%   60%  67%   42%   45%   53%   55%
 
So we should fold 88 against either range, 99 is a spot where we need to estimate our edge, the value of our stack, value of winning/losing if we call etc. 
TT+ we should call. AQ we should fold against both ranges. AK we should call against the first range, against the second we need to decide again.