You don't seem to be "cheap to core" if you want it $40 shipped.Several cheapgamers' are even cheaper then that,they just wait for clearance sale then they apply coupon and price grabber coupon.
Since the ps3 version came out,you should state what system you want it in?It's either xbox 360 or ps3?You can try buying off some cager.Several of them might picked it off when eb or gamestop sold it $30-35 for a used xbox 360.Or you can try ebay,my friend purchased new obilvion collector edition for $41 shipped a few months ago.