If you're talking about the lens, I paid a little less than that. I've bought two compact cameras, two DSLR bodies, three lenses, and a TON of accessories from them over the last four years, so they cut me a slightly better deal than their advertised price. At any rate, $1619 is a pretty good deal among brick-and-mortar stores (which I prefer over online buying for big purchases). IIRC, Canoga Camera had it for the same price (but didn't have it in stock when I called), and Ritz had it for $1799. It can be had for somewhat less through several places online (B&H for $1590 imported - as in gray market with no US warranty, or $1615 USA warranty), but as I said, I prefer being able to go into a shop that can exchange immediately (or close to it) if there's a problem.
I don't know what they'll charge for the D300. I imagine it'll be around $1800.