Exactly. It should only be compared to existing technologies that are currently shipping. Oh wait - that's FPGAs and graphics cards!
Yes, you can still buy/use GPU, but think about the future.
Compare them with other ASICs.
My point exactly: other ASIC manufacturers have a backlog that means your device will probably not be shipped before August - if you are lucky. Many people are willing to pay a little extra for a device that ships earlier.