Tomatoes are, imo, the prime example and possibly the only one of popular produce, of bland produce in the US.

I think it's a combination of having them year-round (they are picked before they ripen for shipping) and the emphasis on color/look being very high. A good tomato tastes much better than most store bought to the point I didn't know I liked tomatoes until I had a garden grown one. Now I eat store bought as well but it's not the same.

I don't find most other fruits/veggies to suffer nearly as much from that though.