Go watch, the 250 play cash tables, at Fulltilt. There are nuts pushing all-in on suited cards, even when there on a flush draw.
It is the same in 2NL, and 10NL, and even the same in small buy-in MTTs.
If you hope to win a lot of pots, on a draw you are crazy.
on a flush are 1 in 6.
I hate to put it so brunt, but i have lost a lot chasing draws, more then i have won. If you have a loose player, betting on a draw will only cost you, he will call you with low pair.
If your on trips, i say it is ok, but watch out for the calling stations, as long as you see no draws, you should be OK.
I will say this i have won more on two pair, then i have one pair, anytime i go for a str8, or flush i get kicked down on it.
I hope that sums it up for you.