...or is it just logical? 

GB ADVANCED : Rubin/Saphir-->Fire Red/Leaf Green

DS : Diamond/Perl --> Heart Gold/ Soul Silver

3DS: X/Y --> Alpha/Omega

I think they make it because they are a company that runs on money and they like to have as much of it as they can while staying within the bounds of acceptable ethics.

I think they are doing it for the money. But it's pleasing fans too so that's a plus!

I'm actually glad they decided not to do the remakes during Gen 5 (Black and White).

Seeing it in full 3D will be that much sweeter.

They make it cause theres demand for it.

It was meant to be.

They'll do it for the money because they know people will buy them.

I'm not complaining about that though.

well, pokemon is practically an anual franchise. Nintendo needs to fill this year's gap i gue$$

Maybe it's just me, but I don't find X and Y to be as much eye-catching as BW, they look extremely plain.

I had that feeling too, we are all too used to sprites for well the entirety of the series.

And well the 3DS isn't exactly a powerhouse.

But I'm slowly warming up to 3D pokemon as I play more seeing neat pokes likes these animated: