Even with what you consider reliable transportation, things do happen. We had an incident last week with Sears (who I will never spend a dime with again) and the installation of a serpentine belt on my car. Hubby was driving (thank goodness) and as he pulled out into traffic, making a left turn, the serpentine belt slipped off and then tthe serp. belt knocked the power steering belt off with the slippage. He was able to drive the car to a nearby parking lot without power steering no less. He kept a cool head about him, while I know I would have panicked if it had happened to me. We had to have my car towed because it was pretty much undrivable at that point.
So even if you think you have reliable transportation, a repair shop can make a mistake, a huge one, and you could need a tow.
If you're riding in a car (or truck) with someone else and they have a car issue, you can use your card.
The Plus card allows you 100 miles for a tow. We specifically upgraded when DD went to college 93 miles away so we had the piece of mind if her car gave her any trouble, we could have it towed to a garage locally as opposed to the small town she was going to school in.
There are also lots of local shopping and Internet discounts available with the card. If you've never checked out AAA's website for discounts, you should. I know there's a discount with Pizza Hut.
Barnes & Noble also gives AAA members discouints -- I know on-line for sure, not sure about the brick & mortar stores.
You can get "free" photos for a Passport with the Plus membership.
AAA is one bill I never mind paying.