I'm pretty sure I'm preaching to the choir here, but don't you just hate it when you see a yarn and get so obsessed with it that all your other yarns just aren't so shiny anymore?
My current obsession is Noro Daria, and with those colors, who can blame me? I've long admired Noro's gorgeous colors but haven't been thrilled with the texture; how the yarn feels going through my fingers is just as (if not more) important to me as how it looks, and Kureyon just feels scratchy to me. But half the table at Knitch's knitters' group last week was whipping up darling dog leashes out of Daria, and I had to check it out, at which point I realized it would be the perfect yarn for the Exchange Bag project in Deb Stoller's The Happy Hooker.
I haven't caved and gotten the yarn yet, but I know it's just a matter of time. I should really try and finish my current project first, but I don't know if I have that much self-control. Time I should be spending on that project, I'm using to price Daria online instead.