I agree. In Rostraver's early days, the fact that it was the only game in town probably mattered more than the location. Even Lebo was built in the late 70s, Rostraver still had the advantage of relatively scarce ice. But now, YMCA (Bethel), Printscape (Southpointe), Lebo, Ice Castle, Center Ice, and Connellsville are all just close enough to be a problem. YMCA closed a sheet a few years ago and Connellsville is always in a state of disarray, so maybe it's just a matter of which domino falls first, but something is going to lose for sure.
I would think if you are going to open another rink anywhere in the area, it would not be in the Mon Valley. Maybe closer to the new developments in the North Hills would be the best choice, but I think just about anywhere but the Mon Valley would be a better choice.