I just got an email confirming that when my prime renews is July the rate is increasing from $79 to $99.
My rate increases in July 2014. So check your renewal dates!
I shop on amazon a lot so I feel like the discounted prices I get probably even out the membership fee. If I had to order more in order to get free shipping or wait around until I have several things to order together then I'll probably end up spending that much more anyway. It's just harder to part with it all at once.
I will probably still come out ahead but not sure. Its probably still worth it but it pizses me off.