Getting a whole business set up to build TPU hardware for third parties (design, build, sell, support, etc.) is probably not worth it when there is overflowing

Getting a whole business set up to build TPU hardware for third parties (design, build, sell, support, etc.) is probably not worth it when there is overflowing demand for TPUs in their cloud already. Businesses running their own hardware probably prefer CUDA as well for being more generally useful.