Unfortunately sub $3k is not possible for a new spa. Realistically, you will have to increase your budget to $4k - $6k. At the lower end of that price range you would look into either Nordic or Viking and if you can go to the high end you might be able to get into an entry level spa from either Caldera or Hot Springs, Marquis, Jacuzzi or Sundance. If $3k is your budget, then I would look into a quality used spa.