Ok, to me this is like the perennial gas/diesel debate. There are grills and there are BBQs and there are both. Grilling is not BBQing. BBQing is low a slow with indirect heat. taking hours to infuse smoke flavor and tenderize traditionally tougher cuts of meat, like brisket, ribs and pork shoulder. grilling is direct and fast and used for steaks, fish and sometimes chicken.
Weber makes great grills and if you go big enough you can BBQ some, but in my mind most good BBQs are not travel friendly, unless you got one you can pull on a hitch. Then you need the right wood, like fruit woods, nut woods or hickory.