ETH is one of the few I consider to diversify a bit, even tho I don't really like the current price, but I may enter if there is a 50 USD resistance and a dip.
Im just too lazy to learn how to store every altcoin. How does this thing work? I don't want to be holding it on Poloniex. Holding ETH is already a stress, holding it in an exchange is just nuts.
Do I need to download the entire blockchain, or can I relatively safe hold them with something else? (like Electrum for bitcoin)
chance you will not able to get etherium wallet to work, it's not possible if you're not tech savvy. web wallet could go offline anytime and disappeared. best option now is to store within exchange at this point.