If you have spare money, you can buy anything. And what about those that want to get rich on crypto, but don't have any money for that? First place goes to airdrops and second place is for green mining that doesn't require any additional supply. I have to look for the list of such mineable coins.
Is it really possible to get rich in crypto currency? yes it possible but not for everyone, I have been seen many people around me that who ave lot of money to spare and they do investment on crypto currency and loose there those money Because it is not enough to have money here, you have to have enough knowledge about trading to gain profit by investment. Moreover, I think if you want to do trading, you must make investment and for this you need money. And to start mining you have to make some kind of investment and I don't think the mining you are talking about is profitable, it's just a waste of time.