Penny, that certainly is an alternative many may want to consider. However, in my case I didn't like the flimsy drip caps at the RV dealer. They also did not look as nice to me and did not fit nearly as well. You have to either modify the RV drip caps to fit on the aluminum frame or to screw/rivet them to the fiberglass--both routes I wanted to avoid. (I tried them initially.) They also allow rain to run over them and down the door, whereas the angle iron runs water to the sides. Also, in my case the local RV dealer is 30 minutes away and often closed, whereas the local Lowes is only 2 miles away. However, I'm sure your suggestion is better for many people. Advice and tips are free, and you often get what you pay for.