I see you're nestled in your easy chair, reading the paper. Generally it's a conflux of quality and value across the board.
Some wineries make outstanding wines, but only one kind.
Others make many wines, but perforce some do not rise to eminence because of volume. However, there's a smallish Napa Valley winery called Bouchaine Vineyards that makes consistently good, and reasonably priced, wines. And there's not a poorly made wine in the lot. Bouchaine is one of the southernmost wineries in the Carneros region of the Napa Valley. It dates only back to 1981, and is now solely owned by two of the original partners, Gerret and Tatiana Copeland.