People say "mining crypto" is dead and unprofitable. I beg to differ. I bought this BitFury NF1 0.6 Bitcoin Miner 3 years ago for $40 with Bitcoin. The little usb miner only operates at 1.7 to 2.4 GH/s(not very powerful ) By comparison, a good Bitcoin miner nowadays operates/mines at least at 13,500 GH/s and most serious miners have several of these.
However, with a small usb miner like mine, you can mine other new coins that don't have the mining difficulty of Bitcoin. In May of 2017, I pointed this little guy at 421Coin.
A brand new "weed coin". 421Coin is also a POS (proof of stake) coin, meaning that simply by holding them in a wallet, you earn more by staking or minting. The more coins you have, the more you stake. Anyways, this is a neat little coin that I've been able to mine and stake simultaneously! As of right now, I have 2,075,975 and they just keep multiplying. I staked 150,000 last night!
421 Coin finally got listed on a little exchange and has a value of only 1 satoshi (.00014250 of a penny) each but a value of $215 for them all! Just think though, if they hit even a penny each in a year or so this 2,075,975 would be worth $20,759.75. By then I could have 10 million coins!