If you're near Raleigh I've seen it on tap at the Village Draft House and I think World of Beer, and bottles at Bottle Revolution.
Though I'll admit, when I tried it at the Draft House I thought it was very good but didn't change my life. Wouldn't surprise me at all if it had lost some aroma since leaving home base
LOL..j/k. I do consider it my favorite double IPA on the market right now...at least of the ones I've had...but just like Stone for you, I've no doubt the Heady Toppers/Bells stuff I've had suffered a little travel fatigue.
First Brew was thanksgiving 2011, I'm at 100 batches and counting (as of 10/27/2014), and ran out of room in my signature to list them all.