OP is just sharing HIS experience with us about the cost of ownership of HIS 2007 LC. Let's go easy with the "shoulda done this" and "overpaid for that" comments. He's neither complaining nor asking for advice. If he was, it would be a different story.
I agree for the most part, minus him saying the Slee override was more hassle than it was worth. If done properly, it can be a valuable tool. As far as having dealer do all his work, I see nothing wrong with that if he's willing to pay.