At what point would you take a small edge

[kev123]

I have been having a discussion with a friend regarding AI play early in MTTs;

Lets say we have a real donk at our table who just loves to go all in, at what point would you gamble with him if we know our equity in the hand was in the 60-65% range. I know it would be dependent on other factors but how many BBs would you gamble, if you lose you are out.

I feel anything over 50BBs I would consider folding, am I wrong to be passing up edges like this early in a tourney when I feel I can out play them on flops etc?