Its not abuot the 3 cent fee , when you paying with bitcoin you dont need any bank permissions , no need to fill up your name and personal details , you can do it 100% anonymously , thats why i think pepole paying with bitcoins , but there is much more reasons such as credit card theft and much more
Yeah a lot of people use btc also though for the rise and fall to play the stock market, BTC is a small thing in the stock market but it still is considered a stock and it's great for holding because it will increase in value.