Definitely depends on the store and the tomato. There's lots of varieties in grocery stores now. When I was a kid, all you could get were pale, mealy tomatoes.
Oh, I'm certain that tomatoes you grow at home are super good, often better than store bought. What I'm saying is that store bought tomatoes are much better than they used to be, and are usually plenty good enough.
I agree. Some stores here sell heirloom tomatoes (the ones there are often funny-shaped and not just red) and they're much better than the perfectly round mealy, red ones. They're also much more expensive (often comparable to farmers markets here) but they're available. True, they're not as good as farmers market or homegrown, but they're leagues better than the "regular tomatoes"