People love certain types of change. They love cool new features.
I fear you're missing the actual driver. People love getting into the same crap that everyone else is getting into, and it barely matters what it is. The "cool new features" are just fig-leafs they use to justify being trendy crowd followers.
I have two favorite examples: I grew up during what now appears to be a fad for "high fidelity" audio equipment, and people competed for large speakers, loud amps, and "clean" sound. After a number of odd flips and flops, everyone switched to competing to see how many mp3s you could squeeze into a gadget (and never mind what they actually sound like). Many households no longer have anything like a half-way decent sound system at all, and hanging around the house you probably listen to music on whatever speakers came with your TV (if you don't get by with whatever came with your laptop). So: what happened to "HiFi"? Did everyone get into HiFi because of what it could do, or just because it was The Latest?
Second example is more recent, which means it'll get a lot of pushback from slashdot quibblers: digital cameras. Remember when everyone wanted more and more megapixels? And then they all switched to crappy cellphone cameras, didn't they? So did they care about image quality, or could it be that was just The Latest?
(Responses I expect: "But I have a MegazillaPixoid for some purposes, and the cellphone camera for others." But the MegazillaPixoid has been sitting at home gathering dust for a year, and you aren't even thinking about upgrading it.)
Where things get interesting though, is even once you know all this, once you learn to recognize yet another deranged fad, you still need to keep half an eye on the fad, because economies of scale and competitve pressures are driving the evolution of some technology that might actually have some utility to something you really do care about -- e.g. in my case I suspect I've got multi-core ARM processor servers in my future, even though I couldn't care less about those smart phones everyone is stupified by.