It rose for longer than a week.
But, frankly, TF2 was a functional product when it was released and it has had lots of patches that were not primarily bug fixing patches.
UT3 was horribly broken at release and it took almost a year for just the issues with loading custom content on a dedicated server to be "completely" fixed. It also had a severe case of identity crisis.
If there is one thing UT3 proves it is that you can't recover from the worst launch of all time.
But, frankly, TF2 was a functional product when it was released and it has had lots of patches that were not primarily bug fixing patches.
UT3 was horribly broken at release and it took almost a year for just the issues with loading custom content on a dedicated server to be "completely" fixed. It also had a severe case of identity crisis.
If there is one thing UT3 proves it is that you can't recover from the worst launch of all time.