[ . . . He can think of uses but has no need, in the same moment? Huh. Well, he hums a little, and with minor sarcasm, ]

A large simulation room which has adjustable terrain, enemy AI, controllable gravity and weather functions, and the ability to design specific locations or areas for people to battle in, explore, or otherwise program to their needs. Ah, and a vending machine with various health items outside of it might be good. And a bigger and more technologically advanced medical center? Mmm, so basically a good Battle Dome.

[ He expects the guy to take it as a joke, of course. Who wouldn't? ]