We subscribed to HBO for the half priced ($9 per month deal) and then were able to renew it at that price. The deal just ran out, so I declined to keep subscribing at $18 per month. For what we watch, that is a bit high.
However, for us it is worth perhaps $9 or $10 per month - are there any deals these days which would allow us to get it for that price? (without a package deal with, e.g., other premiums like Showtime.)