re: "I'm trying to figure out why anybody would go to all this trouble for a gas grill"
Because 12 minutes after I started the grill this morning I had a nice medium steak alongside 2 over-easy eggs and some whole grain toast - cooked on the grill and side burner.
Because 10 minutes after I decide to have a burger or sausage, I'm eating said burger or sausage.
Because I need the whole grill and a little more temperature control when cooking pizza on the grill.
Because I use my grill at least one a week, even in mid-winter, for "single servings".
Because grilled pineapple is a great - and quick - appetizer even when the rest of the meal is being cooked in the kitchen.
I could go on, and I'm not trying to convince you that gas is better than charcoal, I'm just trying to help you "figure out why anybody would go to all this trouble for a gas grill".
My Weber kettle is under the deck and comes out quite often, but for ease of use and quick-turnaround, a gas grill sure is convenient. That's why we "go to the trouble."