WBY is "Wild Blue Yonder" which is the full name for the AQ Wild cable
WEL sounds so much better than Wild, if you are going to get a cable hold out for the WEL. The Wild for sale has no box which is a major no no with a used cable, easily reduces the value by 10% -- there is no reason it should have been sold sans box. My guess is based on the look of this pair is that they were cut down (by AQ, which is fine) from a longer set, the condition looks just like the way AQ returned my 12M WEL when I had it cut down to an 8M and two 2M cables
Of the two WEL for sale one (the 1M one) is odd. I have never seen a pair with a silver finish XLR, most are gold. Check the AQ price books to see what they should look like. This to me is fishy. I checked all the AQ pricebooks I have and none show a silver finish XLR. The newest with this old connector is Nov 2011. By 2013 they had switched to the newer connector so maybe around 2012 they used a different finish which would accord with the four year age but definitely worth a question and maybe contacting AQ. Also I have never seen one in this box (should be a fabric inner box with a flock finish outer like the 0.5M one, again maybe things changed more recently but this is the finish of all the ones I have seen and owned)
The second 0.5M pair looks good and is I believe a dealer demo (that's why it has the little plastic sleeves on the male end). Again no issue but check if the seller is the first owner and where they got it from
An issue with WEL XLR cables with this termination is that the XLR plugs can become disconnected. They are cold welded (basically screwed tight) to connect and if someone twists the connector relative to the cable the connections can be broken. You can fix this by taking the cable apart, or of course send back to AQ for re-termination (about $250 if I recall)
So net net if you can make 0.5M work in your setup then go for the 0.5M one, and offer closer to 25% ($1500) as a start for negotiation
