Well, the time came where I had to definitely cancel my subscription for good, I was fine paying $29.99 but not so for $50, and also I'm pissed at Adobe right now.
I gotta say, I feel really liberated, went back to CS6 perpetual, and I don't feel I'm losing much, but I'm avoiding Adobe's products as much as possible, try to break the dependency...
FWIW, there's a lot of haggle when you tell them you want to cancel, first I was offered a free month, after saying no then what about 2 months free, but I said the only way I could stay is if you can give me the $29.99, which they told me I was going to get an answer on email, which I never did. Nice try though, keep me waiting for an answer while my subscription auto-renew, not this time brother!
Gotta say I recently had the same thought. But I only have perpetual CS5. I can certainly get by with CS5 PS and AI, but not AE. However, I realize that i only use AE for certain projects. Sometimes every month, sometimes every 4 months. I'm thinking I'll just rent AE monthly if the CS5 version won't cut it. For example if I need ray traced extruded candy. I figure there's no reason not to give it a shot for as long as I can bear, or until I find a replacement.