There's considerable difficulty finding a geothermal HVAC contractor in the Dallas area too. Most people are told all the reasons why they should instead have conventional HVAC, and/or all of the horrible problems they'll have with GSHP technology HVAC.
Fact of the matter is business is too plentiful here in such a hot climate for there to be good competition for GSHP. When the AC breaks in the summer, there's no time to research GSHP, try to find a GSHP contractor, and wait the time for a borehold field to be installed along with new equipment that more than likely should have the duct work reworked. It's just much easier to swap out the conventional unit for another one.
Right now it's Christmas time for HVAC professionals in the Dallas area, with little time to spend educating potential customers on the merits of GSHP while their competitors are quickly sweeping away customers with simply swapping out units.
My guess is major metropolitan areas in Nevada aren't much different.
Amazing as it may be, GSHP HVAC is very much niche market only here in the Dallas area. Sounds like it may be similar in Nevada.
Best regards,
Bill