Not sure if this is the right place or if this is common knowledge and I'm late to the party but I just bought 3 of the 24" cases Sam's Club has listed online. It was $10 cheaper than the online price of $49.98. They still had half a dozen or so left on the shelf at the 96th street store.
https://www.samsclub.com/sams/24in-...l15=49670722717&wl17=1o1&veh=sem&source=ifpla
https://www.samsclub.com/sams/24in-...l15=49670722717&wl17=1o1&veh=sem&source=ifpla