Correct - a lot of the blander varieties have pushed their way into local seed markets. You should check out heirloom seed vendors for old style tomatoes. There are also some modern boutique hybrids that are absolutely fabulous. My favorites are Sun Sugar if you like cherry tomatoes, and "Pineapple Tomato" if you like that rich "tomato" flavor in a full-sized. (Both are also pulp-heavy, which in my opinion are a feature common to better tasting tomatoes.)

It's not only home grown, you need the right seed too. I'm almost sure you didn't have one. Earlier tomato varieties are simply discontinued because of low yield, short shelf life etc.

Good heirloom tomatos are almost like a berry. So juicy and flavorful. There’s nothing like it. Maybe you need seeds from American growers.