The last few times I flew on the US Airways Shuttle on Saturdays, I got nothing but a drink and a bag of pretzels. But the Delta Shuttle gave me a snack basket with a piece of fruit, cookies, candy, and a couple of other items. But that was over two years ago when they had 727s. I don't know if it is still the same or not. I think US Airways does serve what they advertise on weekday flights. But on weekends, Delta gives you more.
Fly Eastern's Golden Falcon DC-7B