What would the beatles novelty Christmas album be worth?

Through their fan club, The Beatles recorded Christmas messages every year from 1963 until they disbanded. Each one was about 6 to 7 minutes in length. Bootleggers have created compilations of the messages and sold them. The quality is generally poor because the messages were released by the fan club on "flexidisks", not vinyl. The Beatles did NOT release a novelty Christmas album. You can hear these messages on YouTube.