You will never get your bitcoin back if you buy one of these at this price. It isn't even close. This is for suckers or those with stolen electricity.
I would say the PACMiC and S5+ was the sucker's call. This thing is like the HA-HA afterward. I mean they, Bitmain, knew they had that S7 right around the corner. Yet they throw up the S5+ at a ~$2300 premium and at .444 j/GH. Then boom what not but a week or two later drop the S7? Dirty pool.
Bah! They weren't even going to sell the S5+ to the general public until people started seeing it sold elsewhere. The people essentially demanded that it be sold to the general public. And then they only sold a limited batch. Anyone who bought an S5+ should have known the S7 was coming soon. Hardly "dirty pool".
I'm not defending the S5+ or the S7 ... but it is worth keeping in mind that most folks who ordered the S5+ already have them mining, 6 weeks (aka 3 difficulty adjustments) before most anyone will be mining with an S7.
At the time the S5+ buying window was open, bitcoin was higher than it is now; a 7.7TH S5+ cost 9 BTC, which is quite a bit more cost effective than the 4.8TH S7 for 8 BTC. Unless your local power rates are outrageous, an S5+ mining today will break even sooner than an S7 starting mid-October will.