From what I can tell most of the big name online retailers jack up prices on Opus as many people deem them as the holy grail of cigars, so they'll pay the hefty mark up. You're better off with a local B&M(B&M's vary obviously) or watching the sale threads here IMHO.I've honestly never seen Opus' that low. I guess I'm looking in the wrong places.
Cigar.com has them for an average of $25-$30/stick, or $300 for a box of 10.