Even though, I suggested to the OP that a small increase doesn't seem unreasonable, I am now considering letting my PP account expire in November after five years.
I am thinking about relying solely on my GV number for home phone and dropping PP, to save a little money. I also just upped my mobile plan from a super cheap 10 cents a minute GoPhone plan (ancient plan grandfathered) to unlimited talk and text and believe it or not adding data for the first time, not relying solely on wi-fi.
Figuring my PP would be going up, due the mandatory Internet tax requirement and hearing others complain about their increases, I figured I would have additional incentive to let it lapse. I called PP billing to look into this and was told my 59.99 a year OBi plan would not be going up. Nothing has changed and the current rate would remain in effect until I make some change. He even put me on hold while he confirmed it and stated that if it goes up to just call for an adjustment (hmmmmmm) he said he noted this on my account.
Now, I'm retired (except for my 25 hour a week part-time job) and every dollar counts. Otherwise I wouldn't even consider worrying over 60 bucks. Anyway, I thought other PP subs might find this interesting.