Yes recently the alt coin price is pumped up, I also sell almost all of alt coin, because I am sure alt coin price is not going to hold for a long time, better go to trade it before the price fall down, and after this incident I can see some good prospect in trading alt coin
I think it is a big mistake to do such stuff now. If we are talking about poor quality coins then yes, it's good to sell them. But if we are talking about ethereum, byteball or even litecoin - I believe such ones are going to survive and will stay on the stage, so to say. I keep my eth and wait till it gets to the price a lot higher than 40-50 dollars.
I know Ethereum is supported by some big companies and perhaps that's why the price is growing but I think it will be stong anyway.