Our rating bounds have been optimized for current tournament usage to let all members play in as many tournaments as possible. Really, the 1200-1499 tournament section is the one with most players compared to others (18 players at the start and 8 for the last round on average), so we cannot expand it at this time.
Let's hope we'll have more and more Live Tournament players each day!
Piotr
The rating cutoff for the 10-0 tournament I played in seemed to be 1499. It had only 12 players at the start and 4 for the last round. The "open" 10-0 tournament had far more players involved, as far as I could tell. Would it make sense to increase the rating cutoff to 1599?