I'm not giving up but at the same time it's much better to just buy the coins at current stage of mining and price levels. Or focus on something else. Currently gpu mining is not lucrative like it used to be and you have to rely on future appreciation or a pump to get your money's worth out of it. Not a good position to be in currently.
Just sayin, might be worth looking into masternode coins/staking/buying coins instead of over investing all your money in just gpu
100% a year is a bad roi ? you are being greedy mate. And remember, you can sell your 1080ti for 50% of purchase price so easily. If it's still reasonably new and you have all the receipts you are probably gonna get bit more. ASIC goes to bin once you done with it.
1 year roi is just for the cards only. Once you add in the cost of everything else to build the machine its much longer than a year and by that time it's time to upgrade to more efficient cards. Plus exhaust vent fan, air filter, electrical setup and your time and maintenance. I'm not greedy and if I've invested 10k in a GPU rig, I cant even buy a cup of coffee as that will kill my ROI.
Go look on the D3 antminer and litecoin miner threads. They are all crying that they can't roi in 6 weeks and they are not satisfied with $30 to $60 day per asic. Thats greddy