But is such happiness sustainable?

On my brother's recommendation I checked out the pilot for Glee. I liked it and will be watching when it comes on again in the fall(?). The action centers around the Glee Club's advisor and the kids in the club itself (focusing on a couple, with the others not receiving much attention). 

The setting is in a stereotypical high school with the standard cliques (jocks, cheerleaders, etc.). Very similar to High School Musical there are stigmas attached to artistic activities and crossing over is taboo. Also similar to HSM one of the main characters is a jock unsatisfied with being just one thing. There are a lot of characters and the pilot sets up many possible story lines within and among characters.

The question is, though, can all of the story lines be original and entertaining? High school has been the setting for many different stories (too many to list) so I can see it getting stale quickly. Nevertheless, I'm looking forward to seeing how it develops.