Question about La Vague SOUS-CHEF Sous Vide Container Set

Buy a plastic box with a lid in the hobby section, cut out the rounded part of the lid for the heating rod, done. Costs approx. CHF 20.00 depending on the quality. The pan lid holder from Ikea can also be used for the holder. Costs approx. 12.00.
However, I appreciate the quality of the La Vague SOUS-CHEF Sous Vide Container Set and have paid the extra price.

It's a cool piece that does a great job and is super suitable for sous-vide. Not exactly cheap but good.