No, ASIC is application specific integrated circuit. They are specific to SHA-256, not scrypt.
All you see is a lot of GPUs, or maybe a botnet?
You can't see 50gh/s from one user? Why is that? It's only around 25,000W of power, a 220V 200A service would run that just fine. I have that at my house, and could (am
) rent a shop for $750/mo with the same service.
That would generate about $1000 a day and only cost about $28,000. This is why all graphics cards are sold out, everywhere.