I agree that right now cryptoboreas is the best option pricewise right now. I'm pretty sure GND hasn't finished their datacenter expansion yet, which means their rates are still going to be quite a bit higher than CB.
On the other hand, great north data has a 24/7 onsite tech, something cryptoboreas doesn't have. If there's a problem, its likely that we will get our miners back up and running faster if we go with GND.
It really depends if you guys think its worth it or not.
That is definitely true, but it is something that we plan to have in the future. However, all our miners go on switched PDUs so if remote reboot is necessary that is an option. You guys can designate one guy to keep an eye on the gear and who will reboot gear when/if necessary. I do hope these Avalon6 miners are stable.