Car lease about to end. Buy or to Dealership and Buy-Back?

OK, my balloon payment is $17,625. I can purchase an extended warranty for what looks like $3,000 or so, so I would have to finance $20,625.

But then the dealership is talking about selling the car to them, my buying it from them as Certified Pre-Owned, and that INCLUDES an additional 2 years and 50,000 miles of warranty.

Is the dealership trying to rob me or does this make any sense to anyone?

Car lease about to end. Buy or Sell to Dealership and Buy-Back?

Just give the car back, and get a new one.