Mine is usually just for Pokemon, Crystal at the moment. I found some PSX games with simple graphics to be fun - Vib-Ribbon worked well.
I tried to play FFVII but it was too small.
Yep https://www.amazon.com/SAMSUNG-microSD-MicroSDXC-MB-MD1T0SA-AM/dp/B0CWPNS8JY $99.99 it shows for me - not sure how taxes work on this (I’m not American) but that probably counts.
Aluminium and steel have interesting galvanic reactions when touching each other https://www.albanycountyfasteners.com/blog/stainless-steel-and-aluminum/
This is pretty standard for US companies in general.