You're absolutely right. The artwork is definitely better presented on vinyls. One of my all-time favorites is Rainbow Rising, which is just not the same on CD.
I've never collected things just for the sake of collecting them, but I don't have a problem with people doing so. Growing older, I tend to spend a lot more money on European comics than on music. I used to buy a lot more music, when I was younger. These days, the old bands don't release music on a regular basis (and unfortunately not in the same standard) and I don't really have interest in newer bands around.
I guess that you plan to unwrap your Senjutsu editions to enjoy the layout and read the lyrics, so it's funny that you don't play or listen to them, as it is bound to make the whole experience a lot more intense.