It's the law firm. They go out and pitch brands on using this to control distribution. See https://markettrack.com/wp-content/uploads/2016/08/Vorys-and-Market-

It's the law firm. They go out and pitch brands on using this to control distribution. See https://markettrack.com/wp-content/uploads/2016/08/Vorys-and-Market-Track-Unauthorized-Reseller-Webinar-Slides-81116.pdf https://markettrack.com/wp-content/uploads/2016/08/Vorys-and..., which pitches brands on creating bogus "warranties" so they then have a flimsy legal basis to threaten sellers with. Most sellers, even businesses, will fold out of fear and want to avoid a lawsuit, so these claims aren't often tested in court. Also, to be fair, this case was someone selling as new. The game was sealed, but it does cut down on their own sales. I know people who'll go to e.g. bestbuy, buy games using launch discounts or clearance, etc, then sell on Amazon. Perfectly legitimate business model in my view.