why not limp all pairs utg?

[cbloom]

It's often advised to only play like 88+ utg, or something like that. Why not play all pairs in these games? I love it when someone raises behind, I call a little raise and flop my set. Sets play fine out of position, so being utg is not really a problem, without a set I fold the flop. At low-stakes it's very rare that there's a big raise or more than one raise, so if you limp for $1 you can usually call $2 or $3 if it's raised at all preflop.