The last big Codemasters shooter "Operation Flashpoint 2 Dragon Rising" launched without dedicated server support. So far as I know it still doesn't have it. Just like Modern Warfare II.... This ruined both of those games for me. I bought neither.
More and more game devs are dropping the superior solution of dedicated servers which we've had for donkeys years and are going over to the console style peer to peer hosting....
If rFactor2 supports dedicated and F12010 does not.. then No sale.