I'm a professional musician/producer and total vintage head. I'm mid 40s and in my mind 'vintage' essentially referred to anything pre-80s (so in 2005, >25 years). Now thats its 2020 I see people referring to 90s stuff as vintage, which I suppose is true by the 25 year designation, but that just seems bizarre to me...aka I'm getting older and the world makes no sense, haha. Following that line of thinking, to me, it seems like vintage SHOULD refer more to things from a 'classic era,' but of course that is in the eye of the beholder. I'll tell ya this, I'm not paying a premium for 90s guitars, drums, or amps...well, I'd buy a Klon or a Memory Man...oh crap, I AM gonna pay for 90s stuff!!! :-)