Hosting companies DO NOT pass electricity savings to customers. if you compare prices in WA-they are essentially the same despite the fact that they pay 2c/electricity.
Electrical savings transmission simply does not WORK!
Sure it does. Ask advania in iceland how much they charge for power when you supply the fully populated container.
They pay 4 ct for power, they will bill you 5 ct.
Instant savings.

advania quotes $160/mo per Sp-10, this is much much more than 5c/kw (it should be $44 in electricity /mo at this rate), so I don't know where you get your numbers.
Of course, they should charge small amount for everything else, but not 3 times more than electricity.
Unfortunately you'll never find a co-location DC that will host an SP10 for $150 or less. I have to pay $150/month for my SP10 since I could never run it in the house in the summer. Nothing I could do. I do have full access to the miner, for that price I better. It's not only the electricity, but to keep it cool as well. Some may find $150/month way too much, but if you had no other option then show us those low prices.