And it means you dilute the effect of the 10+ buyin downsinghs we all get

Another thing, following on from DaHorror's post - don't assume that just because you're at $25NL, everyone bluffs all the time. 90% of bets are made with proper hands; this isn't to say you can't get people off hands, you can, but by and large, try and do it with *better* hands than they've got.