You got me curious, I went and read about the warranty.
RV Warranty Forever - Idaho RV Dealer - Located in Post Falls, Idaho - Keystone, Four Winds, Carriage, Forest River, Komfort, Mandalay, and More
I noticed a couple of things. Nothing covered in engine, drive train, or generator. Doesn't cover master brake cylinder, pads or shoes. Only covers
manual scissor jacks, not hydraulic or electric jacks. On "Exterior and Interior Components" they only cover door handles, latches and springs. No mention of roof, windows, mirrors, cameras, etc.
AND...You can't do your own maintenance, only a "professional" can do the maintenance
they require.
I'd take the warranty, but it wouldn't be a deal maker. If they tried to justify higher price because of the warranty, it would definitely be a deal breaker! JMHO