A GTX 1080 is like $550 at this point, K80 cannot really compete with the cost effectiveness here. And it is probably not going out of fashion in one year, so t

A GTX 1080 is like $550 at this point, K80 cannot really compete with the cost effectiveness here. And it is probably not going out of fashion in one year, so the price is totally worth it. The real attractiveness for cloud at this point is if you are going to train your model with 8-GPU or more, that is likely not feasible for individual enthusiasts, but demand for such machine is rare for hobbyists anyway.