I like Prime for its convenience. I do like to buy local whenever possible but when it comes to driving around to find an item, the gas factors in too, plus there are things I can't easily find locally that I can get right to my door. For example I eat a certain brand of cereal (very high fiber) which isn't carried any place but Whole Foods. Whole Foods is a drive, in traffic, most of the time, so I get the cereal delivered 6 at a time and it is cheaper and no gas used and I didn't have to contend with traffic. I do believe between the gas saved, my time, and cheaper prices I have probably made the $100 back over the year, not to mention the TV watching options. But, if you don't think it is a bargain for you, then you shouldn't renew.