Currently GPU mining works, doesn't it? Despite the fact that Bitmain tries to ruin everything. You have GTX1080ti, why to sell them? Personally I would go 40% GPU, 60% ASIC (remember how profitable your GPU was some months ago).
What's about future, to my mind game industry mustn't be turned into mining industry so GPU's mustn't be used in mining anyway, my vote to asic for that.
And to be fair you don't need my advice but just stated my opinion, I look you from outside and you are amazing member!
Yes, but let's dust off the MagikSmoke 8 ball and look at the next few months:
Z9 will destroy Equihash in short order. Probably will be a replay of the L3+. There goes your 1080 Ti cash cow.
Baikal Giant does X11/Quark/Quibt/Myriad-Groestl/Nist5/Skein/X11Gost/ and maybe a few more in a few months. At your doorstep in about 5 days for $1,600.
Tribus is number 1 on Whitefire's FPGA bitstream release list:
http://zetheron.com/index.php/fpga-performance-profit/And Tribus can support about 130 FPGAs until profit goes to Bitmain ShiteHeaven. And people are already mining Tribus using FPGAs, I mined it for quite some time with 1080 Ti's and it is a waste of money to even try anymore and Whitefire's bitstreams are not even fully out in the wild yet.
Blake variants have been destroyed by A3, Halong, BK-B. Ditto for Decred. And I haven't even received my damn Obelisk SIA miner yet!
A word about the whole FPGA thing: if you follow all the Bitcoin threads and the discord, the FPGA roll out is shaping up in the *short* term to be every bit as difficult as the Vega's were and then some. But it took what? About three or four months for people to figure out ways to make the Vega profitable. Yes, cooling mods required at first. Yes, Senseless will not support Windows. GPUHoarder is interested in cost-efficient accelerators.
But Vosk will be posting YouTube FPGA videos by Thanksgiving, if not before then. You wait and see.
Cryptonight and all of its variants are squarely in the sights of the FPGA guys. I will go on record to say right now Vega's won't be able to compete on Cryptonight come December.
That leaves X16 variants -- and those are next in line for FPGA domination, the only drawback is that you need to link a few FPGAs together and that won't happen immediately on a large, easy to implement scale.
And then we come to Eth hash.
That seems like a very narrow doorway for an awful lot of GPUs.
Please feel free to point out what I am missing and where I am wrong. Unless the Volta is really cheap, I don't think it changes anything near term. And Vega 20? Who the hell knows, and even when it comes out, it will be every bit as unoptimized by the AMD genius techs as was Vega 10. So, unless you are part of OhGodACartel/OhGodASlovenianMiningFarm/OhGodWhyDoIFixAMD?, good luck to you.