Eric, No that 's not it..

I actually had both old and new side by side for a while..I am use to the sounds of both[as an example the DisCover5 and G1000], and find my favorite sounding patches are the older technology.
I also had Roland XV5080, side by side with my JV stuff.
Same with the Fantom, Triton Studio..The new stuff seems to be thinner.
Sure we get use to what we own, but our ears still know the difference..and if we have both and prefer the old..our ears are telling us something..