@Lane Anderson wrote: "Unlike paint, however, you just have to live with them as you cannot polish it or touch it up."
Well......... Maybe not so. I have a BASF 7-mil clear film on Pearl on the nose, and on the doors where the side window bottom weatherstrip sits on the top of the door (Remember, my windows have a rubber gasket around them, not a fabric border). It was the same film spec'd by Mercedes and Porsche of Rhode Island when I got it (and I used their preferred guy to install it).
Those two door strips get scratched up from use and I polish them out for the summer show season using a Maguire's acrylic headlight cover polishing kit, either just the polishing compound on a paper towel or, if it's heavily scratched then I hit it with the compound on the spongie polishing pad in a drill.
Works like a charm.
While the film has dulled, very slightly, over time (almost un-noticeable on a white car), I have gotten a single, 1/8" paint ding under one headlight in almost 20 years of having the film on there and it disappears in most lighting conditions. Car films are expensive, but far less so than getting a re-paint every 10-15 years.