AT414, you're 100% right, but how many people stop and think "Hmmm... $12k for an old bike, or $5k for a two year old one? Hmmm... I'll grab the '05 model thanks Eddie"...
Yes, I know that there's heaps of valid reasons why you'd spend the extra on the Maico, but no matter how strong their interest is, lots of people will find more valid reasons to spend less money on the newer bike.
How do you get lower prices? I've got no idea how - the current prices are driven by a market experiencing economic boom times which is going to remain a relentless, unstoppable force while-ever the boom times exist. I'm waiting (not hoping) for the inevitable bust, that will see values plummet (along with people's ability to afford them) but apparently that makes me a pessimist.
I read Doc's post and initially thought "I'll be surprised if that prediction comes true" - look at all of the older (road) bikes and cars - their values are still held high (and increasing) even though the people with the obvious connection to them aren't around to appreciate them.
But then again, if you look beyond the prices of the glory machines (GTHO/XU1/MC490/good pre-75 MXers etc), and there are a lot of significantly older/rarer cars and bikes that can be bought for relatively little money - I'm not talking pocket money, but still relatively cheap compared to it's newer (but still old), more common counterpart.
I'm not suggesting that your beautiful original CR-RZ or RM-S is ever going to be worth $500 in the future - but in the longer term, your nice-but-not-wonderful YZ-E or CR-RD won't be particularly valuable simply by association.