I have to agree with Michael. Rarity does make me try a bit harder to get a deck, provided that I like the deck though. I have quite a number of the rare editions of the Aurum series. It's a beautiful deck in general, but I especially love the rare editions. Granted, that's a bit different (limited white numbered edition, laser cut edition, Lucite edition) since Encarded's rare editions are different than the original other than color. I like the black Florals (like the Red as well), it's just icing on the cake about the "rarity". It's like buying a limited edition art print, it has an exclusivity factor and when you decide to sell it (if you do), there's a good chance that someone else is looking for that same exclusivity. Old decks sell for much more than they originally did (even after the price is adjusted for modern dollars/inflation) due simply to rarity, and supply/demand. I like Artisans, Monarchs, Split Spades, and others and have a lot of them even though they are open editions. If I'm not a fan of the design, rarity is irrelevant since I'm not buying with the intent to resell for a profit. It's simply a matter of preference, but the fact that a lot of the "rarer" editions sell out quickly shows that at least some others have the same mentality.
I'll be online to get my black Florals because I like them, and also because there aren't 25,000 of them floating around. As always, buy what makes you happy! :-)