The specs and pricing on ASIC scrypt miners that have been released so far don't look very promising.

Significantly less power consumption than GPU's at the same rate, but pricing is only slightly cheaper than just building your own GPU mining rig.

Plus, we are 10-12 months away from shipment probably . . . who knows, by that time, building a GPU rig might be even cheaper.  I'm sure AMD is absolutely loving the rate and price at which they are selling out on every GPU they manufacture right now.  I wouldn't be the slightest bit surprised if they make a move to make GPU mining more affordable to keep on top of this market.