scrypt asics only help with power reduction, not overall performance than what a gpu card/rig can do.. Prices nearly match for that amount of kh's anyway. So overall if you want scrypt asics all its benefiting is power reduction.
what about space savings, and cooling savings too?? even hardware saving if you just keep adding hubs and usb sticks, vs. motherboards, psus, cpus memory and expensive GPUs..
I'll be really surprised if we see more than a few functional scrypt asics in the wild this year. Most of them are scams, like