We tried the CSA two years ago.
My kids like the more traditional veggies...
As mentioned above we got turnips, chard, arugula over and over by the bag full....Regular salad veggies were few and far between; I really expected to get salad fixings weekly.
Our grocery bill went up, since we ended up purchasing regular produce at the farmer's market or grocery store.
Our first few shares were delicious, but then the lettuce, tomatoes and cucumbers ran out. After that pick-ups were a depressing chore knowing we wouldn't eat most of it.
However, the CSA did sway my entire family to eat only organic veggies when possible. The regular grocery store stuff tastes like chemicals now. We started our own organic Squarefoot garden last year, because we were hooked on the taste. The CSA was worth finding that out; even if our farmer has plan to get the world eating chard:tongue_smilie:.