Boy, did I ever underestimate what I was in for.
Five years and one encounter with a very resourceful AH-hunting pandaren later, I finally obtained the last schematic needed on the list. It was the Schematic: Flame Deflector found only in Gnomeregan, an excruciatingly rare BoE recipe that dropped off of Mekgineer Thermaplugg. And it seemed more than a little funny that after five years, the only recipe that eluded me was one found in a vanilla dungeon -- everything else I managed to farm on my own, or snag off the AH. Did it cost me? Oh yes, it cost me. I'm not going to tell you how much it cost me.
However, doing a scan with Ackis now delivers a delicious 303/303 100% complete back at me. And I guess the real question is was it worth it? I couldn't tell you the answer. Subjectively, to me, it was immensely satisfying to see that little list finally complete. But to others, it might not be that big of a deal -- or it may be a journey most people in their right mind wouldn't think of taking. So I'm curious about the rest of you. Do you collect all the recipes of your chosen profession? Do you go out of your way to find the rare, the obscure, the low-level, just to get your list complete? Do lower-level profession recipes matter to you at all, or do you simply skip over them in favor of the more current and more useful versions?