What's the going rate for live rock these days?

[Myka]

If it's nice clean rock with good shapes and without pests or nutrients then $4/lb is a great price.

If it has soft corals all over it or Aiptasia or lots of nutrients, then $2/lb may be fair.

The problem is you have to find someone that remembers/knows the value of good live rock. Nowadays, good live rock from a vendor is around $10/lb. You can buy the cheap crap live rock for $5-6/lb, but it's not very nice.