The hard to find Nikon Coolpix P900 camera is now available on eBay for $549 or $50 off the regular MSRP. Note that this is a grey market item that comes with seller’s (not manufacturer’s) warranty. You can see the 83x zoom capabilities (2000mm) of the P900 camera in this post.
Update – the P900 is currently in stock at Adorama for $597 with full US warranty: