What to do with those 4GB GPUs once ETH/ETC exceed DAG size

[alumar]

https://youtu.be/1aQm7RYng8c I take a few minutes to talk options. I know these are not everything and would be interested in a follow on shouting out your guys suggestions on what you plan doing. What is your forecast on next steps post a 4GB Eth/Etc?

[Skinny48]

Ethereum will soon switch to POS Algorithm leaving behind the old POW Ethash soon, I'm planning to build a new mining rig with solar green energy and I'm going to mine Ethereum Classic which runs on same Ethereum POW Algorithm presently (Ethash) and I plan to buy 6gig GPUs which I believe is enough, 4Gig GPUs can still get the job done but who knows what will happen in future?