Yes, and that's common knowledge among most musicians nowadays. Sure, it's hard to be a musician -- amateur or professional -- and not also be an enthusiast. And I don't think very many violinists would turn down a chance to try a Strad, or at least hold it and look at it.
There's still an open question about whether the new fiddles are better, or that the old ones are deteriorating, or both.
Disclosure: Working double bassist. And don't get me started about bows. ;-)
I play French. I played cello as a kid, and when I started bass lessons in college, my teacher played German but told me there was no reason for me to switch. Most teachers have a preference but can teach either one. I've seen great bassists play both. There's a slight preference towards German for adult beginners because the learning curve isn't as steep.
Which Stradivarius? He made many, some better than others. Also, which modern violin - there are many makers who make theirs sound different, and of course each violin from the same maker will have their own sound.
But to get back on topic I’m not sure I get how wine is the same.
Wine is a product with large taste variations between the different regions and vine varieties. Plus depending of the year you will again have variations in the grapes which can be more or less balanced during the fabrication.
Some producers are known to have produced particularly great wine some specific years which lead to say bottles being very expensive but most of it is very much fact based.
The only dubious thing I see in wine is that the way aging changes the taste of a bottle is not an improvement indefinitely. At some point the wine just gets worst and the search for very old bottle is mostly posturing.