We were able to pick up a few 1080 Ti GPUs for $620-630 a couple months back, now it's difficult to find any for less then $700. Thankfully, we're almost finalized with what we wanted to do this summer, so we should be fine as is until either good sales happen again, or profitability bounces back up big time.
i wasnt sold on TI's but i did buy 10 of them when 107s were clsoe to 500, i figured why buy a 1070 for 500 when i can get a ti for 670
man , these things are monsters , Zcash at 700 heck 750 with good cooling which i dont have , currently they are doing 22 mhs each on that new pumped coin
basically a 470 or 480 can do 6 mhs at max at 150 watts
If i could source good 4000 watt PSU's id be buying more 1080 tis , but I just cant find a way to power more than 3-5 on one rig withoute the server PSU's and PICOs
at 200 watt a card or min 150 if in under power them thats over 1200 watt , so 1300 watt total system ore more