Sure, gpu are better suited for "mining" but there are other types of processor architecture that are far better than even gpu.
If I thought the bitcoin bubble would last longer, I would invest in who makes these processors.
Remember the gold rush when the sellers of mining tools and supplies made money regardless of the fortunes of the minors?
asic (application specific integrated circuits) and fpga (field programmable gate arrays) mine better than cpu or gpu and it reminds me of the early 1990s when texas instruments "mvp chipset" showed with abilities far beyond anything in existence only to have nestor/intel to bring out a neural network chip/card that was even faster.
I haven't kept up with what happened to "mvp" or the "Ni 1000" stuff but I imagine those two family trees of processor design are somehow involved in taking mining beyond gpu mining.
As it stands now, a single gtx1070 mines at around "30 mh/s" while the top end antminer s9 does "13.5 th/s". In "mh/s", the "m" is "mega" so that means that the "g" in "gh/s" means "giga"and the "t" stands for "tera".
Video cards pricing has come up enough that an antminer s9 is a far better deal even with the substantially higher initial investment.
Anybody considering mining needs to know the who they are up against as competitors........
Inside one of those buildings......
Guys like bitmain are your competition and they also designed the hardware you would use to compete with them.......with their cheap hydroelectric power bills.
I'm hoping new technology will stop the crazy gpu price increases or that mining becomes "uncool".