That pretty much sums up the collective quotes and bottom lines whenever this debate comes up. Show of hands; who listens in a sports arena? Nobody? So why do you think you need speakers sized for an arena?
"It's for the dynamics!"
Really? You listen at physically painful volume? You need a speaker that will produce 110dB at 50 away in your personal arena?
Like that idiotic automotive quote goes, "there's no replacement for displacement", 15" woofers seem just as idiotic to me. Last I checked Formula 1 cars don't have 15 liter single cylinder engines. They have these tiny little things with a bunch of little pistons. Wait... That's because they're just trying to build them cheaper, right? Those Bugatti's are just really cheap because they're using 18 cylinders instead of one gigantic cylinder.
Formula 1 engines don't use one giant piston for the same reason a lot of speakers don't. Large masses are much more difficult to control and replicate perfect pistonic movement with. 3 6.5" drivers have about the same area as a 10" driver but the smaller drivers are vastly stiffer and better controlled. It's a no brainier.
Unless you're digging very low where you require the size purely to couple the frequency to the air, it usually makes sense to compromise between driver size and numbers of drivers. I personally think 2 8" drivers in a cab is a good compromise.