You nay-sayers are completely overlooking the question of responsibility and liability should the installation every fail, cause damage, etc. etc. Anyone who chooses to use a "pro" to do his antenna installation is buying a large chunk of peace of mind, whether you agree with the installer's costs and methods or not. I would add one item to the cost of the job if it hasn't been taken care of and that is an umbrella liability policy in the amount of $1 million or so, again, "just in case" it's ever needed.
And, just to show you that I looked carefully at the photos, I also think that the coax that's been run over the top gutter without protection needs to be padded or otherwise "fixed" before too much time passes, but overall it's a pretty slick job in my opinion.