It is interesting to note that some collectible eyeglasses sell for much more money than some antique frames. However, selling price and value does not change basic fact. The answer is nothing when you are trying to sell a collectible. However, when you are trying to establish a true appraised value, you must work with facts not marketing hype. Collectibles are much more popular than antiques.
More people buy, sell, and collect collectibles.
More books are written about collectibles. More collectible research material is available to scholars. Most collectibles are marked with the manufacturers name or logo. In fact, the presence of a manufacturers name or logo is a good indication that you are dealing with a collectible and not an antique. All of the above combine to produce a wealth of information on just about every collectible ever made.