These are great cases for my needs, and hopefully for other people's as well. I have a lot of decks that work well as pairs- multiple colors of the same deck, regular decks with short decks, regular decks with stripper decks, etc -and these are already making themselves really useful and great time savers. I'm able to pair up decks that I normally use around the house for games, and I'm now able to more conveniently pair up decks for magic that I can safely stash in my travel bags and then carry with me in my kit or even the cargo pockets of my pants. On top of just having a deck with me for fun and games, I'm instantly ready for things like two deck color change tricks or a little magic requiring me to be able to pull cards from specialty decks. and it feels far less clunky in my cargo pockets than carrying two decks in two cases and it makes a tad less noise when I'm walking around. There's a lot less digging around to grab both decks out of my bag as well.
The single cases are still very useful for a lot of decks and a lot of occasions. But if you like pairing decks for any reason whatsoever, these are absolutely a must-buy item.
