I agree with you Afchung, although bear in mind I've only been playing a couple of weeks.

I've often read that you should raise when playing for set value. I'm guessing the idea is isolation - but I don't understand why.

After the flop if they haven't hit you can just fold at hardly no cost, wheras if they have you can get some chips down.

Perhaps someone more experienced might tell us what the point is in raising with low/mid pairs before the flop?