Some folks do not want a used pro saw. They want a new saw with a 20" blade (yes, that was intentional) and a warranty. They also want to bring it in for service and sharpening. Many times that type of customer needs an entirely new chain due to rocking of the old one. They get green chains, bars, and even (gasp) MotoMix at $65 a case. To 95% of the world, an MS290 is s big saw. If the guy has the coin to spend, why not? A 290 or 455 will walk away from a modern "Homelite" anything, and/or his buddies WoodShark.