Thanks for all the answers.
Not interested in GPU mining - it can't be cost effective to keep my main rig on 24/7 mining with my 1070.
Building a mining rig with 4-6 GPUs is too big of an investment, too much Power costs, too noisy, too hot for my apartment.
I guess the conclusion here would be to wait & be informed when new products similar to the Baikal cube will be out.