You can’t simulate the earnings because you can’t predict the future price of the coin you are mining. And even if you say hedged your position by selling a futures contract, kind of like agriculture farmers do, you cannot calculate what the difficulty will be. Difficulty is what controls the supply of the coin, the more people that mine the higher the difficulty will be. If the difficulty doubles it means twice as many people are mining and your profits will be exactly half.
Once an ASIC becomes obsolete it’s basically a door stop. You can take some parts like fans and PSUs and reuse those and you can recycle the metal parts but that’s pretty much it. You cannot make it more efficient or mine some other coin.
But when exactly does an ASIC become obsolete? For example if I buy the latest model of ASIC to mine etherum when will it not give me much gain in performance not in ether
If only mining was this easy...
Any ASIC that makes decent profits is basically impossible to get unless you want to settle for a 2-3yr ROI if everything goes well. Apart from that 90% or more of ASIC advertised are scammers.
I spent 3 months trying to get INNO A10+ Pro. Ended up just buying some gpus.
I'm fine with paying off my ASIC after 3 years, you don't know how long an ASIC lasts because if an ASIC lasts up to 5 or 6 years and I pay it off in 3 years after that it will only be a benefit