Yes, without doubt and no matter the cost. I supported the DS throughout its duration and I still call it my favourite console/thing in which to play games of this generation.
I was all set to go out and get a DSi XL, but a week before it launched we got news of the 3DS and I made up my mind right then. 3D gaming may just be a fad, but I still want to see how it goes. Plus, it is a Nintendo handheld so if nothing else I know that a Pokemon game will come eventually and that will use up enough time to make the investment more than worth it.