I do not think it is strange cause service providers should provide their best if they want to be ahead or at least one of the best. 
1$ per ghs is still expensive and there are more companies like it, offering cheaper and better deals..
How is it still expensive ? They have to pay for elctricity, for the spaces they rent, for the asics, cooling (ok being in Iceland helps), etc... What makes them rent their hashpower ? Wouldn't be more profitable right now to close GM and mine only for themselves ?
so, why don't every single miner that does have a couple of asics share their mining instead of mining for themselves ? it's not exactly that, there is something that doesn't quite fit
As all miners know, ROI is painfully slow and mostly never but selling contracts provides quick, large amounts of cash. I think they are going for a quick ROI. Plus the constant fees.
