Here's an example of a dev kit lease agreement, which is pretty standard in the tech industry. Notice that it's a lease agreement and not a sale. I cannot stress enough that Sega did not have a right to sell and the reseller did not purchase his dev kits legally.
https://developer.apple.com/visionos/developer-kit/apply/static/policy/vision-pro-developer-kit-program-terms.pdf
"3. Title. The DK is being loaned to You and is not a gift. Apple will arrange for delivery of
the DK to You at the ship-to address You have designated. Apple retains all right, title, and
interest in the DK (including all Apple Software pre-installed on or otherwise accompanying
the pre-release hardware). Nothing in this Addendum shall be construed as conveying to You
(or any other party) any ownership rights, title or interest in the DK. Any taxes that may be
levied on the DK (or its use) shall be Your responsibility."
