I got Extra Innings a couple years ago and discontinued it because I never caught enough games. The best is on the weekend during the way, when you can watch about 7-8 ball games at once.
Also fun to come home late on the weekdays and catch a west coast game. I wouldn't pay $150 for it, but it's something fun to have and let's you see those really cool pitching match-ups.
...Boston papers now and then suffer a sharp flurry of arithmetic on this score; indeed, for Williams to have distributed all his hits so they did nobody else any good would constitute a feat of placement unparalleled in the annals of selfishness. -Updike