I have FiOS TV and have the same problem (no MASN2). I was thinking about switching to Dish, but looks like I won't be after reading this thread. So I guess Comcast or DirecTV is my only choices. Yuck.
-John
My understanding of FiOS is that the problem will be rectified. And until it is you still get about 60% of each team's games on MASN.
I probably wouldn't rush to switch unless it becomes apparent they aren't going to add MASN2.