ETH has entered the 'Greater Fool' territory. The sell liquidity is crap. If you have a large volume you pretty much need somebody to buy it from you, because the buy market is thinly spread. I sold my Eth a few days ago. I should have held a bit longer, sure, but I look it at in 2 ways: there is Profit and there is loss. I chose profit. Now many have bought in at extremely low prices as I did, so losses for those are probably not even a concern. However, it is a major concern for anyone who recently entered. I'm not saying it won't go up more, but rest assured, what goes up must come down. Nothing goes up forever; heed the warning.