I live in a fairly rural area 30 minutes outside of a major urban city. While we do have a Walmart in town, that's about it. Just checked my order history and I had 200+ orders last year and already have had over 60 orders this year.2 day Prime shipping is so amazingly convenient for us. $20 more? Lol that's nothing for how much I use it.
Interestingly enough, only ordered a couple of game related stuff. GCU and GS credit makes Amazon not worth it most of the time.
We're in the same situation. Due to work we spend 4 days out of the week in an extremely rural area that only has a Walmart and the nearest city is over an hour a way and the drive can be pretty hazardous during winter. Even with the price increase prime is still worth it.