Not too long ago, we all thought that the RD1000(Roland) was the greatest piano sound there was. Elton John toured with one ..... it looked cool. In today's world .... it's positively awful ! Some people like the DX7 "trumpet" patch. Trumpet? I don't think so !
It's all in how you look at things. There is ALWAYS room for improvement.

You want to ponder a real tough one? How about the fastest mile run? You'd think that each year a 1/2 second could be shaved off, right? But where does it end? How many 1/2 seconds before it actually becomes a ONE minute mile? Things that make you go hmmmmm?