The day that acid is added to a battery is the day it begins its deterioration. From that day onward it will begin to get weaker over time. Usually, a battery is rated with enough reserve capacity so that it will live it's intended lifetime, but there is no changing the fact that it begins to die as soon as it's put into use.
I personally would return it and get a new one when you are ready for it. If you do decide to keep it, keeping it on a float charger like a battery Tender will help it to last longer.
I just replaced my 2008 M109R battery a couple of months ago. Seven full years is pretty good in my opinion. I'm sticking with Yuasa from this point onward. I did not have good luck with the popular Motobatt on my wing, and I doubt my Batteries Plus battery in the VMax will last more than 2 or 3 years based on what I've read online.