[quote name='dfo']You're talking about the Burnout Paradise Ultimate Box, which is only for PC. For 360 and PS3, the party update is a free download, and there is no plan to release an "enhanced" version with a higher price tag at this point.[/quote]
The party update is $9.99. They are also going to be releasing an island sometime soon, and don't forget the legendary cars pack with the general lee, kitt, ecto 1 and such, well, cheap imitations of them anyways.