Talk me off the ledge

As I’ve mentioned in my past posts/comments, I can’t get the 328d out of my mind. I check probably daily because I’m a masochist and like to torment myself. Most the cars I find are in decent shape but above in price/mileage I’d like to pay. I’d say the majority of the 2015 328d’s have about 30-45k miles.

Then.... I found this one, the almost unicorn (missing MT):

https://www.bmwofdenverdowntown.com/certified/BMW/2015-BMW-328d+xDrive-near+denver+co-7a06fb040a0d04fe7ef14cacefa42f5d.htm

A brown diesel wagon. It’s very reasonable on price, $27k; super low miles, 18k. I know I shouldn’t buy it... but that low of miles is amazing.

I wonder how much extended warranties are....