rasp pi cluster could add more computing power for cheaper.
Well, I don't have room in the physical case for more Pi's as it stands, and TBH, I'm not terribly interested in running a cluster at home. It might mean spending some money, but I'd rather just do it all in the cloud. One advantage to that is I can easily scale things up and down dynamically, and I can use a mix of CPU and GPU (or even FPGA) instances without having to go out and buy a lot of expensive hardware.
Not to say that I would never bring part of it "on prem" and run out of my home, but right now the cloud approach feels more manageable.
rasp pi cluster could add more computing power for cheaper.