Look at DM's for example. Every DM has always been a great gun, the problem is, they come out so damn often. Every single year a new DM comes out. Even though last year's model still has near the same performance, because it is "Newer" than the previous, people always want the newer, rather than the older, and so people will offer lower and lower for the older models. That is the problem with certain companies that release an annual gun. DM, PE, etc. However, PE stopped that trend a couple years back, and guess what happened? The Ego 11 values stayed god damn near consistent around $750-850 until news of the new Ego LV1 was coming out. Because of that, the same mentality came into play. People want the newer, not the older. So, the older sells for less because it is viewed as outdated. Take DLX Luxe as another example. The guns still sell for an insane amount, even for the oldest model. Want to know why that is? You guessed it, they don't release an annual model and they release so rarely and randomly, it is impossible to predict any noticeable patterns. Also, because most of their guns are "the same", they can support the newer "parts" even in the older model, which allows them to maintain their value continuously. If DLX released a model at a constant rate of 1 every 2 years, people will know the market and when the guns depreciate and appreciate in value. That's why it makes it incredibly hard to pinpoint future prices for these guns, yet is extremely easy to predict prices of DM's. Even though DM quality stays the same, the performance is still "the same", they are still viewed as outdated because they don't have the latest "camo anno" from Dye or don't have the new case from them. The main reason products depreciate in value is because of predictability. Take a look at Apple's products. Every single year, a new iPhone, iPod, Macbook, iPad. As soon as the public gets wind of these new products, prices go down. In the stores, the week that the iPhone 4s launched, you could buy an iPhone 4 for half the original cost just one week before. Now, once the iPhone 5 released, the iPhone 4s had the same depreciation just as the past models, but even now the iPhone 4 is "free" with contract of course just like all of these. Now, just because something has a lower or higher resale value doesn't make it better or worse, it's simply consumerism and the economic mentality of these consumers. You can still get the same performance from a DM9 as a DM11, but because one is "newer" and "looks cooler", it has a higher value. It is simply the natural flow of technology. The new places the old. The new prices go up, the old prices go down. when next year rolls around, the same will happen again and again until the oldest product as such a low value, it's almost value-less.
Please note, I started this at 9:34 so ideas may change.
That was well put! I couldn't have said it better myself!