MTB components have changed dramatically. Entire paradigms have shifted. Number of useful gears for example, let alone the deraileurs. There isn't a part on the bike that isn't completely different from what was 15 years ago. A lot of the older stuff was so "wrong" that even if it is classic, well build and in perfect condition it's just hard to drool over.
Can you explain how derailleurs have changed 'paradigms' in the last 15 years? Mechanically the principle behind them is the same as it was.
So I'd say your opinion was, essentially, worth shit.