Authorized Canon USA dealer Unique Photo via Amazon has two copies of the RF 50mm f/1.2L USM available for $1999. They’re noted to be used, in “Like New” condition. This deal is available through their Amazon storefront. This is a great deal compared to the regular $2299 price for these lenses, brand new.
We’re not sure what the story is behind these specific lenses, but commonly, dealers will sell items as “Used – Like New” when they are open box or damaged box. Canon’s minimum advertised pricing rules don’t apply to used or open box items.