[simtel20]

I would guess that the casino is a relatively cheap space that can do entertainment and conferences and food, and it's not being chosen for the gambling aspects

[happymellon]

I get what they offer, I guess I just don't see that as team building.

[eudamoniac]

Having fun with people in general is team building. Amusement park would do the same thing. It doesn't have to be any special format.