Yep - Bluetooth does not have anything to do with blue hair.
My son that works for Microsoft has had a Bluetooth since it's been available and it is a good upgrade from the hands-free he had before because of the noise filter. His Honda SUV has it built in also. Now he doesn't sound like he's in a echo chamber when he calls. It's a must-have for him as he spends a lot of time on the road and leads phone conferences with customers and support staff when driving from Columbus to Nashville or wherever.
I'm going Bluetooth also as I need to be accessible to my customers a much as possible, especially with the current state of the real estate market.