If you paid $120 for a cooking class on your last trip, you bought a performance. You did not learn to cook. You learned to follow instructions in a room full of people who also paid $120.
Here's how the machine works. They take you to a local market — it's not a local market, it's a staging area built for the class, stocked with pre-portioned ingredients, visited by nobody who actually lives there. The recipe is simplified so nobody fails. The heat is low, the steps are slow, the instructor is warm and encouraging. At the end you eat the dish you made, which is fine. Then you get a certificate. Chiang Mai, Bologna, Oaxaca — same structure, different font on the certificate. I've seen the $95 version and the $140 version and they are the same class. The grandmother who actually knows how to make this dish is not there. She is in a neighborhood twenty minutes away, cooking the real version, and if you ate at her restaurant you would understand the difference immediately.
The food in the place they didn't build for you costs eight dollars and tastes better. That's the whole secret they're charging you a hundred and twenty to avoid.