There's not that many pieces -- like the Doom PF above -- that are definitive versions of a character that will rise in price on the secondary market and maintain it. For the vast majority of the stuff we buy, Sideshow or Hot Toys will release a better version eventually and the original will decline precipitously in value.
Also, if you had to sell your IM LSF you'd probably only lose $300.00 or so if you were patient. There's just not a huge market for $2000.00 statues and if someone can save a few bucks by buying yours as opposed to buying new from Sideshow, I'm willing to bet you'd get a buyer.
Anyway, it's all relative. I just bought my wife Sony's new NEX-7 camera for her birthday because photography is her hobby and it's the best camera available for its size ($1,400.00). It won't go up in value and doesn't have an edition size. For Christmas we're going to try and get the zoom lens she wants ($2,000.00). Basically every year that camera's going to do nothing but cost more money in additional lenses/accessories and no way will we recoup it all if we 'get into a jam' and have to sell it.
Same with computers or LED televisions. We buy that stuff and their value will eventually be zero, so why are people upset when this sort of stuff loses 10 or 20%? I totally don't understand this line of thinking when it comes to collectibles. People treat these things like it's some form of insurance if they fall on hard times or maybe rationalize spending this kind of money on them by thinking of it as an investment? Personally, and this is nothing against you at all -- just this general argument -- but no-one who is in a precarious situation (i.e., may "need" to sell) should be dropping $2,000.00+ on statues of comicbook or Star Wars characters. That's just ludicrous. Like Josh-A-Tron says, buy it because you love the rendition of the character and forget about secondary market value.
