We're doing newer Seagate 3Tb (about 15-20 in the last 3 months) and Hitachi 3Tb (pre-flood, and we installed maybe a couple of hundred before price increases).
One of the Seagates died during the initial Full Format but that's been it. (If it's going to die, yes, please do it sooner not later!)
We will definitely do WD Greens and Reds but, as you pointed out, prices are still higher than anticipated.
The only reason we're considering 2Tbs is for WinXP-32 boxes, and for externals if those might need attachings to XP-32 boxes.
We've had more WDs die in the last year than anything else but this is still such a tiny number that I don't believe in "one mfr is bad, others are pure as driven snow".
We're nearing the end of our summer vacation trip and I was soooo hoping that Stormy would have at least announced his 12Tb delivery date by now. And NO - not "2017" either!