Holiday Sale, at davidblaine.com? When?
The wording of that "two deck" statement seems to imply that the Series A Red will eventually be for sale, while the "Rainbow" version will never be aside from this offer.
Something just occurred to me! Someone said 5000 White Lions were made, and ad for the AIP said the "Rainbow" decks were a shade of purple made while the press was transitioning from blue to red. These presses don't generally "transition" to anything, unless ol' Houdini Jr., Mr. Split Spades himself decided to take his 5000-deck print run, start with the blue ink, remove it partway through the run and swap in red ink! Meaning that the WHOLE collection of ALL colors of the White Lions would be 5000, unless the overall print run was higher.
Those Rainbow decks were made intentionally. USPC could have stopped the presses, cleaned out the ink wells and plates, then continued in the new color. But Blaine didn't want that, it would seem. Maybe not ANY customer could get them to stop (or switch colors mid-run), but this is Blaine we're talking about, not Alex from the block! (No offense, big guy!)
Either that or it was someone's silly accident that when switching colors, they didn't clean the plates or the wells or something and a short run got both colors blended until the problem was solved. USPC would probably have just destroyed those cards, but since the White Lions were supposedly supervised by him during the entire print run, maybe he spotted them and liked the shade, opting to keep the finished decks instead.