Let me start with saying I love mining, I used to mine ETH back in 2017 with a 6x gtx 1060 rig... it was fun and profitable.

I was checking your post and I believe it is worth to mention about costs for those that don't have equipment yet and are thinking about invest some money in buying/building a mining computer or rig. Let me do a small exercise for ETH mining, using the same estimated value of $540 in a year.

GPU	1050Ti	1070Ti
Price USD	160.00	380.00
$/year	162.00	390.00
Profit	2.00	10.00

In that period, roughly covers the cost of the GPU, so profit should come over the second year; this is without considering the rest of the equipment cost: motherboard, power supply, CPU, etc.

Now, let's also consider, if instead of buying a GPU, one buys ETH directly right now, and again using the same estimated value in a year of $540 and current price of $250.

Investment USD	160.00	380.00
ETH	0.64	1.53
Future Value USD	345.60	826.2
Profit	185.60	446.20

So, just as a complement to your post, so everyone who does not have equipment put in consideration. Those who already have it, while not using it, put some hours a day to mine and get some coins.