But most people know Bitcoin before know other Cryptocurrency usually have no idea how to Buy Bitcoin and when they know how to buy Bitcoin, they would know how to buy another cryptocurrency as well.
They won't use keyword such as "Buy Ethereum", but "Ethereum Exchange" or "Cryptocurrency Exchange" instead.
Besides, there are many keywords could be used when someone want to Buy bitcoin, such as "Bitcoin Exchange", "Trade Bitcoin" or even "Investing Bitcoin"
I cant really deny on the fact that people are just buying when price hype or rally is taking on place which it do put up questions on mind that why these things havent been done when price is still on low range?
Due to unpredictability of price,there would be always a doubt.