It's not sad, that's simply the reality of how fast mobile technology is currently changing. We're doing more and more with our "phones" each day and thus are demanding more power from them.
Even if you only play games and such the old phones don't have gyroscopes, compasses, and all the other goodies that newer phones have.
Anecdotally I have a Nexus One and it feels just as dated as an iPhone 3GS (which I previously owned). To me that indicates it's not a problem with any manufacturer, it's the industry moving forward at breakneck speed.
At a certain point, supporting the old install base detracts from your ability to build newer and better product. Everything you design is forced to conform to the lowest-common-denominator standards of the oldest hardware models. Alternatively, you are forced to maintain staffing and resources to continue supporting old devices. This can be a serious roadblock to innovation.
Mobile hardware technology is moving so rapidly that it's almost inevitable to see shorter refresh cycles than you would in a more mature space, i.e., in laptops or desktops.
Even if you only play games and such the old phones don't have gyroscopes, compasses, and all the other goodies that newer phones have.
Anecdotally I have a Nexus One and it feels just as dated as an iPhone 3GS (which I previously owned). To me that indicates it's not a problem with any manufacturer, it's the industry moving forward at breakneck speed.