On one hand if you actually read the article this number is already misleading because they didn’t even bother to include the price with materials, which are leather (and assuming high quality leather at that), which probably drives that number up a bit although nowhere near the final cost.
On the other hand, duh, this is how commerce works? I make something (or buy it from someone who can make it in high volumes) and then sell it at higher price than I sold it for. I guess it’s just the commentary that there are people out there with enough disposable income to spend 3 grand on a bag? That is ridiculous for sure but it’s nothing new, been around for decades