Tastes change and I think that some older gear have qualities that can be appreciated today. Think of the popularity of single ended directly heated triode amps, horn speakers, and idler drive turntables. Some older units sound remarkably good by contemporary standards, with proper maintenance, of course. Furthermore, an enthusiast may enjoy a pride of ownership with restoring, displaying, and listening to classic gear.
I find it appealing to listen to media and equipment that was used when the recordings were made to get a taste of the experience of how they sounded in their day. During the pandemic I started collecting 78s after receiving and fixing up an HK Citation I pre-amp with the EQs required to play back shellac and early LPs. I was given a Dual 1019 that I outfitted with a Grado 78 cartridge. Now I can listen to original 30’s and 40’s discs like from Django Reinhardt, Charlie Parker, Hank Williams, and Big Joe Turner and try to imagine what it was like to hear these ground breaking artists for the first time. It’s not high fidelity, but these old discs have a presence and provide an impactful audio experience.
If your goal is “The Absolute Sound” then vintage may not be the way to go, but there are many other reasons to own and enjoy older equipment.