all of the time...
The gas BBQ for westerners allows you to fire it up, and have things cooking within 2-3 minutes.
You arrive home, put the potatoes in the microwave for 10 minutes, get out of your work clothes, turn on the BBQ, put the steaks on with the potatoes to brown them, and in 10-15 minutes its all done.
Then you just turn it off like a car.
Otherwise, you have to take 45 minutes, and its more costly and dirty...
If you want to take the time and enjoy everything, leave the charcoal for Thursday nights