There is something especially satisfying about building the same set of wheels you own (other than color) for a customer!
White Industries T11 hubs paired with Velocity A23 rims is of my favorite do it all road/gravel/cross/commuter sets of wheels you can make. I have had this same combo for a couple years and have done everything from fast (to my standards) road rides to mountain biking and even some horribly slushy commutes that I was sure were going to give the hubs trouble but sure enough they still spin just as smooth as new.
Obsession, or passion? Who am I to judge? Either way I simply love building wheels for those who appreciate quality!