My system sounds better than ever.......Yet, I STILL bought another preamp!!

Just now paid for it. Yep...a tube preamp. (deHavilland Ultraverve 3) Why did I buy this? Is it because I’m the guy with a backwards system...a tube amp and SS preamp?  That's totally backwards but it sounds fantastic.Then too, I’ve wanted a tube preamp for years but I bought everything else. So I’ll see how the tube preamp acts with my tube amp. If its as good as reports and reviews say, I’ll be very happy...... But i'm somewhat baffled that I have bought another component when my  system  sounds so good. This is really a weird sickness....or is it just madness, or old age?