3. Especially, for me, mining using GPUs still worth because of I bought all mining Rig 1 year ago, only profit down if compared 1 year ago. I understand every miner is different in understanding the current mining.
If for you earning $0.20 a day per each 30mhs on eth is good then things are very bad where you live. Business wise, return of the money invested is 2000 days, that is 6 years, that is crazy, in europe, any business you open, if you don't get the return of your money in 1 year then it is called a failure. They close it and build something else.
i don't think, (or want to believe) there is noone outthere mining for 0,20$ per card after electricity costs. If that's the case.....well....they should be desperately poor to do that. or mentaly ill (or both). well, there is another option: to mine and pay the cost out of your pocket, which is like paying for mining , thinking you´ll eventually get profit. The graveyard is full of optimist people.
In my case is an average of 0,52$ per card after electricity costs (but my rigs are off right now). Also considering selling GPU's before cryptocurrencies crack with legislations and taxes and the market is flooded with them. I can get like 50% profit from what i paid for them right now. most of them were bought for like 220€ and i can get 350€ average each easy. that's a huge profit and i would forget about this nonsense. i would ROI instant with instant profit.
BTW , the market today is collapsing another time. One more time.
Not very big distance from net earn $0.2 to $0.5 on GPU per day I presume.