Uhh, no? A pack of 6 Picardie glasses retails for €20, so they're a little over €3 each.

https://www.amazon.fr/-/en/Duralex-Picardie-Set-Clear-Glasse...

Apparently 3.14$US on amazon.com: https://www.amazon.com/Duralex-picardie-clear-tumbler-ounce/...