It may appear that I contradict my friend Gary on just about everything
My opinions are based on real world experiences, meaning I use the gear the way I describe..
In recent topics I am in different corners than Gary..
He mentioned he tested in a store a battery powered speaker (.4 amp, that was most likely a Roland BA330).
He said after to minutes it would drop off.. I have used the BA330 on battery many times at a large volume (rated at 109db) for over 5 hours on gigs, and ten hours at home with a lower volume..
Like wise I use the Marantz on battery power (118db) with the same duration results.. Go figure
On the car battery issue, I believe Cold crank amps "matter"
And on this topic, I have had nothing but success with my powered speakers on the floor, and yes I like conventional speakers.
My big guns have been Roland Cubes for more than 35 years.. I used them in all situations.. Sure there are problem rooms that need adjustments, and I have always found a way to sound okay.
My old band preferred Pa speakers on poles (for the vocals, I always added a floor unit for keyboard to get the intended sound of a real band.).
I played rooms where you had to direct speakers in a direction, even to the point of bouncing off a wall behind a stage.
Naturally the most important thing is not to block the sound from any speaker, even array speakers. I use to have a couple cute girls stand in front of the speakers years ago, it was worth the trade off
The first thing you will notice when you pole a speaker, the user looks for an alternative to get that bass on the floor again... usually a sub woofer.
In 35 years I personally have never needed a sub woofer... Why because I use keyboard amps designed to use on the floor.
Some situations, I would pop off the rear wheels on my Cubes and it would tilt the speakers nearly perfect to project to the back of a crowded floor.. The Cubes are 3 way speakers,, the tweeter and horn projects well with the tilt and the woofer is where it belongs, on the floor.
So that is my real world experience.