At least some of the doubles are very dependent on how well they are grown, and their growing conditions, as has been alluded to here. The old cultivar ,Fata Morgana, is quite stunning in its best form, but the exact same plant in another year may only have a few extra petals, and looking as if it is deformed.
Barbara, in Alaska I speculate that the summers are not long enough, and the flower buds not far enough developed within the bulb by spring, and/or the growing season temps are too cool for further adequate development.
For me, part of the allure of lilies is their symmetry. That's something completely lost with most doubles.
