There are a lot of altcoins and I am really curious why people buy them. Is there any worth of altcoin? Why not using only bitcoin? What's the future of altcoins?
if you want to increase your bitcoin amount,
there 2 options
1st, you should trade bitcoin with fiat currency
2nd, you can trade bitcoin with altcoins
thats is the reason, and many people like to trade BTC with altcoins