If you are planning on keeping your Escalade for an extended time beyond the warranty or mileage coverage I would purchase the extended warranty. I didn't get it for my 15 as I'm leasing it but did get it for my 07 Escalade and my 12 CTS-V. One of the best places for pricing is James Black Cadillac/GMC. Bought mine thru them. Make sure you are purchasing the Cadillac one now. It used to be GMPP but now Ally has one as does Cadillac. Gets confusing today. You can compare them online. With all the technology packed in these vehicles it makes sense to pay for the warranty. You never know when you may need it.