I have earned like 4000 usd from investing in cryto and that is all i have at the moment.
Congrats on the gain!
If you want to invest in some mining hardware I'd say go for the big 3 (BTC/ETH/LTC).
With the release of crazy ROI ASICs comes the crazy spike in difficulty... just remember Dash...
By the time you get the machines, the profitability could be in the negative... so you would have brought a really expensive radiator...