My company owns one, the same make as the one that shot the dragon battle scene in game of thrones. It's a single rotor, and you're right on with the specs. It's not super expensive though, about as expensive as a high end luxury car. Definitely out of range of most consumers, but not crazy for a small business to have. You also need a small team to operate it, and because of its weight there's more aviation regulation applicable, at least here in Europe.