Actually I've had a handset for a year, because VoIP is offered with virtually no added cost. But I had some pioneering offer from the ISP, now more and more widespread, where voice calls to mobile phones are already included in my internet bill (36 EUR per month). So I can call them for free! it even works properly now that I've increased sensibility on the ISP box's web interface. People couldn't fucking hear me before.
The handset is comfortable enough (it's a piece of crap I picked up somewhere), is a useful back up in case of cell phone failure or loss, and I can give the land phone number to people I wouldn't want to have my cell phone number. A win-win-win situation.
In a professionnal or community setting, you can connect an old handset to a computer or a VoIP box, and rent a SIP "line" for one euro per month. or outright buy an IP phone which comes with, you guessed it, a real handset. Everyone in your company gets a desk phone with a real phone number, for a total cost similar to what one land line used to cost. Oh, and in the far future it's probable you could just pick up any handset regardless of who it belongs to and use it with one of your personal identities.