I recently took advantage of Prime but I don't buy from them often enough, not even every year. I cancelled before the 30 days free trial expired. If they somewhat manage to get me buy stuff on Amazon often, I'll be back.
I don't know why this guy is being downvoted, it's true. I've had several orders I ordered on a Monday, sold by Amazon, shipped by Amazon, on Prime two-day that didn't get here until after Wednesday (once, even the following Monday).