Right now its hard to put a value on decks for the future (IMO). For instance...I shot Lance Miller an email asking him when he thought the colored Actuators would be ready. Lance says they still have 15 decks in line before the Actuators are printed. In case eveyone didn't already know, the market is literally flooded with decks. I personally think some of the older decks will hold their value much better than some of the newer "limited run decks". Take Baseball cards for instance. Newer inserts nearly always sky rocket in price every year. After a year or 2 they decline in value because guess what? There are newer inserts. On the other hand, A Mickey Mantle rookie card will always be a Mickey Mantle rookie card!
There's a lot of truth to that. Stuff that's considered hot as lava now can be cold as ice in a year or two. And yes, a Mantle rookie card will always be a Mantle rookie card. But look at what's considered the most valued and one of the rarest cards out there: the 1909 T206 Honus Wagner card. Somewhere between 50 and 75 are known to exist. They're worth a small fortune each - the best condition ones have sold for nearly $3,000,000. Now, you have to ask yourself - who the hell is Honus Wagner? He wasn't a very well-known player, but that card, a premium given away with packs of tobacco, had a shorter-than-normal print run because Wagner insisted the company stop using his image to promote tobacco. So because this guy had qualms about promoting a product he found repugnant, his card is worth multiples of what a Mantle rookie card is worth!
In the end, it's not just what's hot now and what's not hot tomorrow. Sure, they factor in, but there's beauty to factor in, ultimate rarity over time, and all kinds of other factors that can't be accounted for today. We practically laugh at the lowly Bicycle Rider Back, but if you had one pack from the first print run made in 1887, even in used condition and missing the box and jokers, nobody would be laughing at that! They were printed in large quantities, but very few exist - playing cards, like baseball cards, are ephemera; temporary objects not meant to last forever.
Even (and I dread the thought) a lame-assed Merz67 deck could become the Honus Wagner card of the year 2111...