Lots and lots, but also some serious headaches, mining was banned in China was seriously a low point. today I have very few machines left and seriously scaled back.
imagine having 200-300 machines mining when earnings hit 0.40 cents th and then in one second someone turns off the electricity and bans mining. lol
years and years of struggle and work to get to the high point and then bam....
ready for anything
I don't invest a dime, last time I did that I had just headaches, best to do the work yourself.