Im holding some BTC now cause BTC will rise in Value short-Term after this big dump. Until next pump to dump period, I want to invest in those altcoins. I did with stellar for exmaple a profit of 2043% and NEM 743% (bought them juni '17).
When you look at charts of thus coins, there are huge potential. Dev Teams and Community are active and growing. Many undervalued coins.
ETH very good Coin too, but decided for BTC for value trading, because I think BTC will rise higher in next weeks then ETH.