I use only real vanilla extract and never consider the fake stuff. That's interesting about the 'old' new coke. I always wondered what vanillan was, and now I know it's the fake vanilla. I love french vanilla ice cream. Yum! 

I was at a different house today and was making an omelette, and I looked for vanilla and all I saw was this "imitation vanilla with butter" and it didn't smell good. I ended up not using any vanilla at all.