I bought a used Leupold Vari-X III,
a few years ago, which had a misshapen and marred ocular lens housing. The original owner, the seller, said he was carrying the scope, mounted on his rifle, in a hard case across the handlebars of his 4 wheeler, as he hunted, and caused the problem. Because he was offering it at about half the price of a new one, I bought it anyway.
Then, I sent it in to the service dept of Leupold, and asked what they would charge me to replace the ocular lens housing - and also, would they check to be sure the lens edge had not been chipped/cracked, and was the gas seal okay.
About a week after I shipped it, with a letter fully explaining that I bought it used, and full admission that it had been subjected to rough treatment, I was overwhelmed to receive a phone call offering me a deal I still can't believe.
The Leupold service rep told me the scope had internal damage that was too extensive to be repaired. BUT, they would send me a NEW scope, FREE OF CHARGE!!!!
Since the Vari - X series had been superceded by the new (in 2009) VX-3 series, They gave me a choice of anything up to a 4-14 X, AO (MSRP about $650, IIRC). Since I was putting it on a 7 X 57 Mauser rifle, I opted for the 2.5 - 8 X model (MSRP $430). FREE - for nothing!
In exchange for a beat up old scope!
A second hand scope!
An obsolete model scope!
Free - except I paid to ship it to them.