Sounds lazy and a waste of time in the bedroom department. If you can't discuss sex or try new things or really pay any attention to what your partner likes then you probably shouldn't be having sex at all... What's the bloody point after all.
Personally, it's not something I could put up with, sex and the intimacy around it is an important part of a relationship for me. However some people do and if the pros of the chap outweight this problem then maybe you need to take that in to consideration. YOu just have to decide how much his lack of sex drive is having an effect on you, whether you cna live with it and if other parts of the relationship are worth sacrificing this area as it doesn't sound like he's in a rush to change.