No, definitely get the BTN. I'm pretty sure BTN has a requirement that they televise at least two games from every team each year. The road OOC games on PPV will only be a once-in-a-decade kind of thing, and it's only if you're going on the road to face a really crappy program -- and let's face it, how often does anybody do that.
As a Big Ten program, you automatically move up on ABC/ESPN's list to televise games. If we didn't have such a great television contract, there's no way I would have been able to watch Wisconsin nearly every week for the last 10 years (I live in Philadelphia). I think I've missed about three Badger games in that time, and those were before we had the BTN.
Plus the basketball, Olympic sports and behind-the-scenes and retrospective shows are awesome. Right now they're doing a series about football teams from way back when, the 1940s and '50s. Footage that probably hasn't been pulled out of the vault for decades, and it's really cool.