Nikon P900 superzoom for $450 refurbished or $579 new

The Nikon P900 superzoom (83x optical zoom) is on sale in two different conditions, so you have choices to trade-off if interested in it:

+ manufacturer refurbished for $450 with free shipping and a 90-day Nikon USA warranty at Adorama

+ new condition for $579 at Amazon by Amazon herself (limit 3 per customer)