Did anyone else ever notice there are TWO different Other Casino categories on eBay with totally different listings?

One is under: Collectibles/Casino/Casino Memorabilia/Other Casino Memorabilia and this one has around 20,000+ listings.
https://www.ebay.com/b/Other-Collectible-Casino-Memorabilia/66535/bn_16564382

And the other is under Collectibles/Casino/Other Casino Collectibles which only has around 5,600+ listings when I looked tonight.
https://www.ebay.com/b/Other-Casino-Collectibles/573/bn_7203673

What's the difference between casino memorabilia and casino collectibles ????