Have you ever spent $1 on cryptocurrency and got $1000 in return or something similar?
the biggest return for me is with DGB, when i buy, the price is 32 satoshi and last month the price reach 22xx satoshi and i made a lot of satoshi because of this. the other is with ETH and of course LTC, but i am still holding ETH and LTC as i know the price will be increase soon after bitcoin gets stable for the price.