Apart from the fat that now needs burning off of the grill. :(
Idea of doing a BBQ was that because we have a smallish house, it was simpler to cater for 9 that way, and clearing up would be kept to a minimum - disposable beakers/plates etc. The grilling added back on a lot of effort we could have done without.
There is something lovely about going and taking the last, cremated burger too! :-)