You do know that dealerships just LOVE to look for some extra work don't you? :wink
I was looking in my repair manual at that one. There's a LOT of parts that have to be taken off the front of the engine just to repair that seal. It looks like a major job too. Frankly, I'd ask just how much oil is leaking or better yet, look around under there yourself. If it's a small amount, I'd leave well enough alone for now. Or you can clean off the area, have some tracer put into the oil and have a mechanic with a UV light show you how much is oozing out after you've driven it for awhile. Then you can make a decision.