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.
Holding, stock everything is secondary, One of it's advantages is because you don't have to bring tangible bills and coins and you don't have to worry about robbers because you don't have any bills and coins that they want to rob.