Since your private tours are so reasonably priced, often costing less than group tours covering the same itinerary, is the quality of your tours as high as that of more expensive tours?
It is at least as high, and often higher, than group tours. Aside from the obvious advantages of having your own private guide and driver, you will be staying in the very best accommodations available at the time you visit.
Plus, you will be able to visit places that group tourists cannot get to, either because of their group size or because they are restricted to a rigid schedule.