> the barrier of entry for purpose-built chips is 100x lower. You still have to wait half of year to an year to have your purpose built chips produced and ship

> the barrier of entry for purpose-built chips is 100x lower. You still have to wait half of year to an year to have your purpose built chips produced and shipped to you. Masks for your chip, that's what makes the whole process slow. With FPGA, you can have your purpose built chip overnight. Thus, in my not so humble opinion, one should use whatever means one can to make FPGAs more efficient.