Haha, that's not what I'm saying, however. Although bugs are a delicacy in a number of cultures! [0]

Just that factors outside inflation influence the pricing of certain commodities. Nobody's guaranteed a specific commodity forever, and the definition of luxury, and commodity expectations, changes over time.

For instance, pig feet are having a moment (or at least were pre-pandemic). They used to be discarded as waste, but now you'll find them in haute cuisine. [1] Sweetbreads too!

Tastes change, expectations change, cost structures change. The world isn't static, and nor should our metric be.

[0] https://recipes.timesofindia.com/us/articles/food-facts/thes...

[1] https://www.jancisrobinson.com/articles/pierres-worldfamous-...