Define outdated. Do they suddenly stop taking good pictures if they did before?
No, certainly not. What I mean is that technology is evolving so fast that image quality in digital cameras is improving daily. The Nikon D3 has better IQ than the Canon 5D, and the 5D was a huge leap forward from the cameras before it: low noise at high ISOs, etc. And in some months something will be on the market with better IQ than the D3. That makes a digicam outdated as I see it.
In the film world, it is/was very different. A new camera could have more features, but not better IQ as the IQ came from the lenses and film ONLY, and did not rely in a sensor that could be improved.
Not that you need the latest to take good pictures. I now use a '91 Leica M6 and a '80s 50 'Cron, and I know that it can't get much better than that (in terms of IQ, not lens speed).
I don't know if I've made my point clear. Another example: Does a Canon 10D take good pictures?. Sure. Is it outdated in terms of what you get in the market now?. IMHO, yes.
A friend of mine bought a Mavica digicam that took floppies a long time ago (about 8-10 years ago?) and it sure took good pictures then (or we thought). Well, any cell phone today has better IQ than the Mavica.
Edited to add:
No, in the Dslr world outdated means just technically superior enough to induce a severe case of GAS. 😉
That isn't my case certainly. I've only owned one DSLR that I still have and only another digicam before that (a Nikon Coolpix 4500 that I sold), and I currently own only one film camera, being the M6. Not so many lenses either, and not the most expensive ones for sure. So no GAS attack for me.
Cheers,
Javi.