yes, all of the old stuff is still good, I do not see why they call it junk a week after it comes out.
Marketing, fashion, social status, convenience. People want the newer stuff "because they can". But certain organisms like transport companies for example still buy the old stuff for their drivers, because 1) some old cell phones are way sturdier, and 2) they offer no or minimal distraction (you don't want your trucker playing around on a tablet).
So in some way, I guess only certain parts of technology are advancing depending on the public demand? Which may be one reason why Frank meant that it is advancing too slowly, as it could be faster.