Buying extended warranty for my 2006 Boxster...should I, shouldn't I?

[n4ally2]

my warranty is about to expire on my boxster and I am thinking about getting extended warranty. My last car was an audi and the extended warranty did come in handy as I saved myself 3K (5K repairs minus 2K warranty cost). My boxster is below 35K in terms of mileage and I don't expect I will add more than 5K/yr for the next 3-4 years. I have gotten a quote for 2.8K for a 3 year extended warranty. Do you think it is worth it? I am planning to keep my car for forever if i could help if and if not, at least another 6 years.