Dont expect to find many spots when playing poker that you call all-in being a 100% favorite. That why "sometimes" you correctly call an all-in and "get destroyed" (i.e. lose a buy-in, bust off a tournament). Correctly calling all-ins is how you make money, unless math is rigged or sth.

And about people hanging on to their sweet low pairs. Let them do it. Just make sure that you dont have an unpaired Ace King when you go to showdown with them. A player who held onto a small pair when you had no pair didn't necessarily make a bad play, DUCY?
Yes, you're absolutely right, of course. I think, as I said, SnGs suit my style or temperment more. I suspect there's more money to be made at any level playing ring, but you have to be able to absorb bigger swings--something I'm not good at psychologically. I like the small goal aspect of SnGs and the fact that calling an all-in only puts a tiny fraction of your bankroll at stake. This was all by way of saying that IMO he should go back to SnGs to build up his BR.