You can use your gift card + a credit card to make up the difference online, assuming that’s your goal. We just bought a king sized wool blanket a few months ago doing just that. I do recall it was kind of buggy on the site though—something to the effect of it not recognizing the gift card at first when I tried to split the payment. If that’s what happened to you, just try again a few times and it will work.

With that said, we are also on the east coast (VA/DC area) and I spent months trying to find a convenient location that sold Pendleton’s so that I could feel the difference between napped and unnapped before throwing down the extra cash. You’ll want to decide on that too, if you haven’t considered it. We settled on an unnapped design, which is thin with sharper details. Napped will be physically thicker (but with the same amount of wool) with less defined patterns.