What factors affect the price of a flagpole?

There are primarily seven features that distinguish the flagpole price.

Height
Butt Diameter (Bottom of the flagpole)
Flagpole Wall Thickness
Finish (Satin Aluminum, Powder Painted, Anodized)
Halyard System (Internal or External)
Installation Type (Ground Set, Shoe Base or Wall Mount)
Freight & Shipping Cost