Hot grilling "capacity"

Thinking about retiring the ceramic egg and getting a 640. Wondering how many steaks/burgers you can realistically cook at a time using the direct heat function? On the egg I can do 8 big burgers or 5-6 big steaks no problem. Every YouTube video of "grilling" on a Yoder they only do like 2 steaks. We do some entertaining and I'm wondering about the limits of the direct heat use case.