Shuting down my GPU rig, costing me more then I'm making at the moment

Question is:
Keep the GPU´s or sell them while I still can get some cash/LTC/BTC for them (3pcs ASUS R9 280X TOP)
Do you guys think any new super profitable algo for GPU´s is possible in the future?
Sadly this is a decision only you can decide on. Have they made a ROI? if not, and you sell them, will they then make a ROI? Barring some big demand for altcoins, using GAWminers for mining and just buying btc/ltc every month looks like the way to go. Although I'd like to see the GAW pool's btc/mh/day.
Yes they have made ROI a long time ago.
I will think about it and see what I'll do.