I was thinking along the same lines regarding the transporter.
Wouldn't it be great to transport food, agricultural machinery, etc (that's a BIG etc btw
The mind boggles at how much the world would change. No more need for road/rail/air transport of goods/people, cutting down pollution and transport times significantly. It would also make space exploration a lot simpler: even if the transporter has a limited range (which I'm guessing it does), a series of them on spacecraft along the path to the destination would allow us to beam large groups of people onto other planets.
Beam me up!