In case of absolutely free electricity access $0.00 what do you think will the best model for present moment?
S7 is the most modern and very good rig, and it is energy saving model but looks like it is overpriced for this reason.
For sure I can calculate myself market price for
- S3 (450 GH/s for approx. $100)
- S4 (2.0 TH/s for approx $700)
- S5 (1.15 TH/s for approx. $350)
- S7 (4.8 TH/s for approx $1800)
To build 10 TH/s farm (for easier calc) I have to spend
1) 22 pcs of S3 = $2200
OR
2) 5 pcs of S4 = $3500
OR
3) 9 pcs of S5 = $3150
OR
4) 2 pcs of S7 + 1xS3 (for fare calc) = $3700
Ok next, even with higher shipping cost and more PSU req-s looks 22x S3 is the best value for money?
At least in case of any unit hardware failure I still have a lot of working rigs and there are more probability (??) to 'win a lottery' with multiple rigs because of qty maybe?
S5 also looks quite good but not as good as S3.
Sorry for my newbie question
Good luck with your mining!Thanks!