That quick release is sold only by Sears at this time because it is patented. Some guy developed and patented it. Sears offered him a modest amount of money, saying it was going to involve limited sales as a specialty item, and once the papers were signed, put it on everything. He got an attorney, filed a lawsuit for false representation, and WON, By memory, I think he got millions in the court ruling.
I am not going to get into it too far, because it is political, but IMO the patent and copyright system in the US is totally out of control, manipulated by certain large business interests. I am pretty conservative, but there are limits of decency. We had stable copyright laws, then Mickey Mouse was going to be open domain, and Disney spent a fortune to extend copyrights to save him. RIAA pants and rants about piracy stealing intellectual rights of the musicians, but the musicians get almost none of the money people pay for music. Not long ago, Radiohead gave their music away for whatever the people wanted to pay and when they sold full mastered CD’s, it was a top seller.