I'm eyeing on getting a 64gb base model since thats the only one available in my nearest store. Valve doesnt sell decks in my country so scalpers are the only way.

64gb is the most affordable option for me. I plan to get a 512gb sd card and play some casual cod zombies, deep rock galactic, fallout 76 etc.

Is it enough or will the SD card bottleneck it? There's no 256gb or 512gb model unless I take the risk of getting scammed.