Well personally I have 7 - Nvidia 1080's and 1 - Nvidia 1080Ti. Using Multipoolminer on ahashpool.com I pull in about $8-10 per 1080 and about $12-14 on my 1080Ti.
Power usage I pay .13/kWh and end up paying about $160/month for the power to run them 24/7. So net I'm bringing in about $1900/mo right now.
What are you mining to bring in that much per card? I'm running 3 1070Ti's and should be netting about 10 a day for all 3. I'm running on SMOS mining ZEN on suprnova at the moment. My Sol's are about 510 per card on equihash.