If you do a google search on cable fees going up and limit it to websites updating the last week.. you'll see Time Warner and Insight are also going up in prices the same as WOW! I think AT&T is also.
Doing more searching around.. I found this article which could be the reason why:
»www.nytimes.com/2013/01/26/busin ··· ss&_r=1&
So go ahead and switch. You'll be paying more for the same service with the other providers.