No, $45 per IP is about average at the moment. If you have control of the ASN that the block is registered to, and if it's an existing company that is still active you may be able to get $12,000 or more for the bundle. ARIN can in theory block IP transfers but if someone takes over an existing company the number resources can move with it.
Take a look at the discussion archives:
https://lists.arin.net/pipermail/arin-ppml/A good broker might get you more BUT after their commission you might wind up with less.
-Dave