I’ve been down this rabbit hole many times. You can do the basic math and simply see if hosting the 3 will net a profit after you pay them for electricity and then 5% or whatever but even that will fluctuate depending on the current price of Bitcoin. Another way to look at it is future value. Let’s say you break even if BTC is at 65k. But if you hodl whatever you mine until the price of BTC doubles, then if you do the math at that point it “was” obviously more profitable. My personal opinion is if you can afford to run a miner do it. If you can pay the electric bill and you don’t need to sell some of the Bitcoin to pay that bill, it will be worth it in the long run. You’re also strengthening, and participating in the network which is always a good thing. Sorry for the lengthy comment, but I hope that helps. Feel free to reach out if you wanna discuss it more.