Those channels listed (other than ESPN-HD) are HD 24/7 and their quality can be very, very good. Not all shows look as good as others, in my opinion.
Regarding the title of your thread, "is it worth it?", that's completely up to you. Most of us think so, others do not. You'll get answers from both parties on this one. Like most new technologies, it's up to you to determine if the price is worth the benefit.
Regarding the title of your thread, "is it worth it?", that's completely up to you. Most of us think so, others do not. You'll get answers from both parties on this one. Like most new technologies, it's up to you to determine if the price is worth the benefit.