I Ask because, and I hope I am wrong for your circumstance, I don't think you will get it again at $10. That's why I am not taking this deal, we watch HBO often and for the long haul $10 is the better deal than what I think it will be $15 after the special ends. For some they would just not order it again but not the case for me. That $10 was a limited deal, "lifetime" unless you change but to my knowledge that offer is over.
I think if you could have gone back to the $10 when the special ended you would not have needed to have them drop that first.