1600, called, flop comes - either overcards or low flop and your checked too - now what?
more to the point you have invested a large portion of your stack knowing that to hit the flop your a long shot and to have undercards on the flop ur also a long shot, even worse you could be drawing slim to a limp call overpair and you wont know because youl be checked to on the flop and be forced to continue for the rest of your stack.
folding is obviously vtight but with the structure id prefer to be raising first in with 89o than calling or rr preflop with TT, its hardly a monster..