You can all take back your compliments on my amazing willpower and fortitude and stuff, because I totally went back to J.Crew today on my lunch break and bought those shoes.
And yes, my life is in fact better because of it.
I was slightly awesome, though, because they were putting out a cartload of new stuff when I came in the door, and I ignored all of it. I just went in, tried the shoes on one last time, bought them, and left. Go me.