There are really two types of objects sold under the name of croissants. The first kind are actual croissants: flaky, buttery, and light. The rest are bread products more or less in the shape of croissants. These disappoint because one expects an actual croissant.
It's fine if these other products are sold under some other name, like crescent roll. They're not croissants, however.
(cme got me on to this particular obsession, for which I thank her.)