On my most recent trip I got into the cost-effective habit of taking pictures of the screen that shows the picture of you on a ride. I'd rather have a free pic that's the same size as the rest in my album than pay 15 bucks for an 8x10 that ends up in a box somewhere. I did this at most places. Here is RnRC. It's not the best quality. Some of the screens are farther away than others.
And just so you all know...it's totally legal! I went to the counter to decide if I wanted to buy a pic or not and when the CM pulled it up on the screen I asked her if I could take a pic of it and she said, absolutely!