I'm a big Titans fan, but out of state so I feel your pain. The answer is no, it's not worth it. I did it one year and was pretty disappointed. They use RealPlayer and that was always having issues, sometimes there were broadcast issues. Then there's the fact that you're paying 40. They cut out most of the ads, but then all you get is a few mins of silence. Add to the fact that there is no picture and it's just a fail IMHO. At least the Titans have Mike Keith. He made the games worth listening to. Not sure who you have for the Jets.
I admit that I find alternate ways of following the games. It maddens me no end (bad pun intended) that the NFL has this deal with DirecTV. I hate DirecTV. I would pay for streaming service, but not $250 plus DTV fees to watch ONE team.