I bought my car with an RMS leak, originally covered under warranty, which was four years ago with 41000 miles on the car. I didn't have to pay for it under warranty, but then a couple of years later on this 2001 Boxster model, I experienced 2 other leaks, which I had to pay for (upwards of $1500). The moral to the story is that, if you are under warranty with Porsche (and I do believe it's two years for all repairs), then go for the replacement. I always figured that Porsche must know their stuff, and what I did when I got the other oil leaks fixed is stress the the technician "make it tight and durable." So far so good...but a funny "cover Porsche's butt" was told to me later on, when the sales associate suggested an extended warranty, as follows:
She said that "the seals are like a rubber band, even in a car with low miles, because over time they will stretch and eventually fail." That was her description. Now, to me, this implies that "yes, the seals will fail, so get an extended warranty to cover that." In turn, this means to me probably (and mindlessly as they would like it) to buy coverage on the prospect of failure in any capacity (be it engine, transmission, electrical, etc., and that is based on the assumption that it's covered).
So I agree with everyone who had RMS leaks and beyond, it's up to Porsche, (echoing many posters) that have said "fix the problem first." I agree with that. They say outstanding service, and I feel for those who drive a 911 convertible (yet they do seem to have the money), still, why get ripped off at any price?
What I do is tell them "I'm a teacher, don't lay all this on me, tell me specifically how much it is" and let them know that you are a current and future continuing customer as much as possible. Sometimes they listen....

but only sometimes...
be alert when you deal with Porsche