How many of us are truly satisfied with their systems?

For now, I am happy with my system. I merely have a Yamaha N803 receiver, Yamaha CD player, my old Sansui SR525 turntable, Vandersteen speakers and I stream Spotify.  I would like to upgrade and have been tempted at the stereo shops but my knowledge is very limited so I've resisted the buying, selling, trading, upgrading, tweaking war which I know would be a never ending expense. I am starting to weaken though and I've heard a few systems that really blew me away.  Maybe I'll do what I often do for now.....procrastinate.