Well, I've been hearing the "they don't build an MB like they used to for 25 years and it has yet to come true IMHO.
When I got my first 123 car in 1978, several people told me how that car was nowhere near as good as my old 114 230. They told me that again when I got my new 210 car and still again when I got my C240.
They've all been great cars. I'm really puzzled why people say such things. Technology marches forward, it only stands to reason that the cars created from this technology will also advance.