We still pay for prime, I have had it for 5 years now.
Living in Austin, we can get prime 1 hour, or free 2 hour shipping (include tip of course).
We buy a ton of stuff from prime using their standard 2 day shipping and it saves me a ton of time. I'm too busy to be searching around stores for a particular item, or a specialty part.
Just bought two parts for my air conditioning condenser, and they were on my doorstep in 24 hours for half the price of a supply store.
Not to mention, the prime streaming is getting better there are actually shows on there I enjoy watching, and the prime audio is very good for listening in the car.
I have not gotten into the free ebooks every month, but my mom does it and she likes it.
It will be interesting to see how walmarts 2 day shipping plan works. I have used it a few times and it has worked just as well as amazon, with no membership fee.
Also there are no extras such as tv streaming, etc.