I no longer do the typical pay-for rides, but I still pay the big money for certain types that include a closed course. The 5 Boro Tour is a 100% closed course through NYC, including major highways and bridges. And the "Hub on Wheels" in Boston which has many sections of closed course, including a section Storrow Drive which is closed on both sides, giving the feeling a a world where cars don't exist.
In summation, if I'm not getting a closed course, I'm typically not paying. It's easy to carry 100's of miles worth of food in a jersey or frame bag. No need for aid stations.