maybe buying a potential altcoin, is good idea ?
or you can buy new vga for mining it
Yep good idea buying a potential altcoin in that way you can groe your bitcoin and also lessen the risk of your bitcoins unlike gambliing or investing in hyip sites no guarantees.
The main problem is, not all people knows how to choose which altcoin is potential to invest. Sometime we think coin X is so potential to be great altcoin but in fact it can be failed coin. Investing in altcoin is like a gambling as well, but we need to do some researches and analysis about the altcoin.