The hops will fall out considerable in an IPA over time. The stores around here that still have hopslam all have it on sale. I've thought about grabbing some. I bought a bottle for a friend who is expanding his beer tastes, and he just drank it this past week and loved it. I bought that bottle out of a refrigerator and he promptly put it into his refrigerator as soon as I gave it to him, so it probably held up better. I put a couple of my homebrew IPAs in my fridge as soon as they were carbonated (~2 months ago now), but I can't fit them all, and I recently compared one of the long term refrigerated ones to one that I had put in the fridge just a few days before and there was a huge difference.
Some people like the taste of an aged IIPA, but if you don't like it so much then now you know not to get more than you can drink fresh.