How often do you need to scan a 3D model of anything?
I'm sure it will be popular with the creative people. It's possible it will get popular in some niche markets, like real estate agents taking 3D shots of the apartments they offer (though not much hope here, they still fail to take decent photos even now).
Every day.
The 3D scanning technology would enable products that are add-ons to objects where the original manufacturer did not see value in adding an interface. If I can scan my car interior, I can attach my GPS to nearly any surface "perfectly". This gives aftermarket products very nice finish with a much lower cost.
If (when) we can make a cheap and small sensor that can provide depth data to the camera to make cool looking 3D pictures, it'll likely find its way on smartphone cameras.
In 2050, will our pictures still be 2D arrays of RGB pixels?