Thanks for reading! Ether was the only one other than BTC listed on coinbase and I hadn't found any exchanges yet. Plus, I had downloaded the ETH wallet client and explored it more than any other, so it felt more comfortable. PERSONALLY (not giving any investment advise) I am long XRP, LTC, ETH, STEEM, GNO, STORJ, FACTOM, ARDR, and many others. One way I choose the good tokens is by visiting their site, and looking to see what sort of other well established companies they are partnered with.
Zcash recently partnered with JPMorgan Chase. XRP is partnered with the Bank of England... etc.