So obviously not all gamers care about backwards compatibility, and I wouldn't expect them to, I know plenty of gamers who won't play anything that's not "current gen" and the idea of going back to classic games isn't on their radar. I don't begrudge them for that, but nor do I think I should be begrudged for wanting to play classic games.
Backwards Compatibility admittedly isn't the most important decision for everyone in buying a game console, when it's not factored in I use console exclusive games as a deciding point on which one gets my money, but back 2 years ago when I was sitting on $500 and I could easily have picked An XBOX 360 or Wii as both have lots of games I'm interested in, I went with the PS3 because I had a pre-existing library of games.
I'll admit many people probably won't consider virtual console and PS1/2 Classics as true backwards compatibility, and it's not essentially (though PS3 can play PS1 game discs just fine) but the cross platform nature of my ability to transfer purchases from one system to the other, places it in the same category for me. I understand the majority of consoles have no backwards compatibility, but to call it a moot point of discussion is ignoring it's significant impact. The PS4 FAQ even says there will be no backwards compatibility for PS1/2 games which I would presume also means their "Classics library" of PS1/2 Digital Games, which is rather unfortunate, especially since PS1 games would ONLY need software emulation (PS2 tends to be a bit trickier which is why there's significantly less of them on the PSN).
Basically no matter how you slice it, going into the new generation of XBOX One, PS4, and yes even Windows 8 you have lost a lot of basic compatibility. Now I know you can definitely work around compatibility issues in MOST cases with newer versions of Windows, but to say it's not an issue is missing the point. I'm sure if someone hacked a PS4 they could load PS1/2 emulators on it, but that's nowhere near the same as having native support, and it tampers with the original product (regardless of your stance on this it won't be discussed here).
I have kept most of my old consoles around, and I try to keep them in good working order, but the simple fact is electronics have a shelf life, both my NES Consoles have quit working, and both my Super Nintendos get a bit flaky from time to time, it's only a matter of time before these consoles stop working, and yes I understand with a bit of technical know-how you can fix them up, replace their parts, swap out battery backups in your gamepaks and get everything working like new, but gamers have come to expect simplicity and convenience when it comes to playing their games.
GoG.com is a great service, and has taken off because of it's convenience. Why do people put up with Valve's DRM so much when many games published on Steam can be found DRM free? Convenience! There's a lot to be said for the simplicity of downloading, installing, playing, and even uninstalling games without any headache of tweaking installation programs, running compatibility modes, and a myriad of other far more annoying DRM schemes.
So the bottom line is that yes I CAN still own my old consoles, and I CAN still fix them up to make them work, and I CAN hold onto all my old games for them and play them, but that does not mean that console makers SHOULDN'T future proof their hardware and strive to give their customer's easy, stress free, convenient access to their classic games. I definitely don't think it's the only angle they should push for, but it's certainly a huge incentive to many potential buyers, and what publisher doesn't have wet dreams at night about selling you the same game again?