Yep, the guy at the store either got taken, or he was hoping to take you ! It's really good, but a year past and I would pass.
Wow...I totally disagree.
I hope you bought some of that 2012. Celebration is my favorite commercial IPA, bar none. I always pick some up when it first comes out and I love it...but I also love it when it's from the previous year and usually pick some of that up as well whenever I see it.
Celebration is really top notch even when it's a year old.
No question it changes with age, but most definitely not in a bad way.