Some of them may be cider only varietals, which usually aren't super tasty on their own. This doesn't make them any less valuable, they just have a different use case.
For example, UK cider varietals include:
Dabinett (Bittersweet, high in tannins, well-balanced flavour, single-varietal and blended ciders)
Kingston Black (Bittersharp, high acidity and tannins, rich flavour, vintage-quality single-varietal ciders)
But are they tasty?
Some of them may be cider only varietals, which usually aren't super tasty on their own. This doesn't make them any less valuable, they just have a different use case.
For example, UK cider varietals include:
Dabinett (Bittersweet, high in tannins, well-balanced flavour, single-varietal and blended ciders)
Kingston Black (Bittersharp, high acidity and tannins, rich flavour, vintage-quality single-varietal ciders)