well it would be an inconvenience to me. I do not have a car with Bluetooth ability, but I use the Aux cable into my phone for roughly 2 hours of driving every day (Pandora/Calls etc.) While I do this, I will often charge my phone at the same time with my car charger.
Also when I am at the office, I keep a normal pair of headphones nearby so I can listen to something on the PC or on my Phone, often while I am charging the phone.
So thats just a no go for me.