It may have been a glitch or we may have problems in the coming months.
edit: Chicago-land
Probably just the standard 'it's out of stock, so some random seller will throw it up there for 2-3x the price and hope someone buys it' that just about every product has on Amazon. I see it happen all the time with board games.
Like this card pack for the Arkham Horror Card game, that someone's trying to sell for $40, when it retails for $15: https://www.amazon.com/Arkham-Horror-TCG-Dagon-Mythos/dp/B08...
100% the fault of Amazon or whatever marketplace this is. Right now we should be having a rich taxonomy and unique product database that links all versions of the same product together so that I can click: "Chewy Dog Food 5kg" and get all the sellers offering it. Then proceed to sort by price, filter out the suppliers that look dodgy, add said suppliers to a "fake chinese product spam list" personal black list, and proceed to buy the cheapest original version of the product.
Still, it is just an anecdote.
My pup eats Wellness CORE Natural lamb
We are already stockpiling ramen and water and now I guess we will start adding dog food into the mix as well.
Things have not fallen apart, but they have clearly changed.