Another hot topic. Many experts believe that ASIC resistance is a futile endeavor for the reasons you listed. But designing a worthwhile SHA ASIC is certainly a

Another hot topic. Many experts believe that ASIC resistance is a futile endeavor for the reasons you listed. But designing a worthwhile SHA ASIC is certainly a lot easier/cheaper than designing a worthwhile scrypt ASIC. Worth noting, there are actually scrypt ASICs already, for litecoin and dogecoin at least. Ethereum and Zcash both tried to make asic resistant hashing algorithms. So far they have held up. Ethereum has a hardfork history though and also is trying to move to PoS. Given the cost of developing asics, I'm guessing most manufacturers aren't willing to risk that ethereum could just hardfork to invalidate the hardware, destroying the investment. We will see, but I'm guessing the Zcash algo will see asics within 2 years if the coin sees successful adoption.