I really love the way the expansive HBO budget amplifies the comedic stakes. For example, we know that they really will pay for some pretty wild stuff, such as physically exactingly recreating a section of an airport with functional restaurants inside. That adds a funny sort of credibility to little gags like the “get the dog sniffing air from the right city” bit, which they obviously didn’t really do and only needs to be communicated through a couple of quick insert shots of a truck and a guy with a hose, but your brain at least briefly accepts in a “sure, why not” way because of the context