I would check ebay completed auctions if you want to be absolutely sure about the going price. I think the last one went for over $300. I doubt a fellow MW would charge that much, but who knows? As far as rarity, it's not as rare as the low-vis, but probably about as rare as a 1a max. One minute, everybody's selling them, about a month later, they're all gone. I should have bought 2 when I had the chance.....