99% of the contamination on my vinyl is static, especially this time of year. Vinyl is moving further and further down the list of things to do for music, though. If I must spin something physical, it is usually going to be CD, which has been the most notable, audible improvement in my lifetime. Second place likely goes to integration of subwoofers in a 2.1 system. Still like two channel, but with a plus.
Vinyl is a double edged sword of sorts for me. My albums ended up being a source of long term, sentimental association I had not figured on, much of which can set me up for a melancholy mood that is not always good to revisit certain memory lanes with. Not bad, or anything, but often times, I just don't want to feel any kind of reflective way about it in exchange for just wanting to listen.