I would have done the same, I think Ashford has the same problem as Amazon where if someone seals something up enough to look new when they pop the box open for a split second it just goes right back on the shelf when it's returned to them. I've never had an issue but I do check things carefully.
They are probably customer returns or store displays. Sometimes Amazon relabels them for Warehouse Deals, but not always. The ones I have ordered from Ashford have all be unopened, but that doesn't mean it doesn't happen.