How do bags get the X'd out tag? Are they seconds, returns, something else? I see so many used bags on ebay with the x'd out tag. I actually bought a well worn 257 with x'd tag and filson would not repair/replace a zipper (even at my expense). They did however, mail me a zipper for free after my repair request so that I could get it repaired locally. I was very pleased but am just curious how these bags end up on the 2ndary market.