Why not geothermal investment? (Score 1)

Instead of spending billions on a theoretical power generation source, why doesn't the government invest in geothermal plants? These have already been proven to work (you can even get a plant setup big enough to run 2 family homes for around $40,000USD), and will provide energy for about the next 10,000 years. I'm sure with the final price tag of the 14 billion or whatever, a geothermal company could have created some pretty cheap and efficient commercial versions of these plants.