I can't resist shooting slide film. My two favorites are Velvia 50 and Ektachrome 100VS (I've got about 15 rolls left). For years I've been kicking myself for shooting chromes because I don't have a single print from any of them.
I recently made my first attempt at creating internegs from some of my favorite slides using Portra 160. Making the internegs took around six hours total for 76 frames, and when I got the film back, I was saddened to find that not a single one was useable! It's enough to drive a man to drink.
I'm tempted to switch to C-41 or digital for color, or maybe go fully black & white for a while. But damn if I don't just love looking at my slides on my crappy lightbox with my crappy 15x loupe.