Fair. Although I have more to say.
Maybe this connector from the 50s has survived this long because it's perfect (or at least really good) at its job? There is a reason why all professional equipment uses analog connections.
I agree that at a price point of 6€ or 20€, it doesn't make much of a difference for most headphones - although I'd like to mention that for 20€, you're already in the price range of cheap IEMs ("In-Ear Monitors"), which are really good in terms of price to sound quality.
If you want reliable earbuds with good sound quality and affordable price (between 20€ and 100€), IEMs are a really good choice.
Also, their cables are pretty much always robust and replaceable, so if one does break, you won't have to buy new headphones altogether.
The only "caveat" with IEMs is that they exclusively have analog connections (3.5mm).
I think that's a good thing, though: the manufacturer has more budget for better cables and audio drivers this way.
I hope I could shed some more light on this :)