I have few rigs with RX470 4GB, is it worth it to mine RAVENCOIN?
nothing is worth mining anymore
RVN has always been a profitable coin to mine with Nvidia GPU's, one of the top contenders and sometimes the top crypto to mine in particular with 1080 TI's;
the long term price outlook is in question, but it's still one of the best choices for 470 series too (assuming KwH prices of approximately 0.12 USD), now that ETH 2.0 has begun...
For mining and sellnng yes, but buying rvn imo isnt a good idea.