Majority of the posts that have anything to do with cryptos always start off with Bitcoin, I mean if I spoke to an average dude about cryptos he'd probably say "oh bitcoin and shit", I honestly feel it's kind of over hyped. Personally I prefer to deal with ETH as a main coin, faster transactions, lower fees, usable for the majority of ICOs. I assume that 2018 might be the year of ETH hopefully, unless there's a way to somehow upgrade BTC.