Funding is a key plot point. As far I recall, this has only manifested as "we can't afford pretty costumes and special effects" (and a "we can't rent a bus" epi

Funding is a key plot point. As far I recall, this has only manifested as "we can't afford pretty costumes and special effects" (and a "we can't rent a bus" episode). In reality, if they were tight on funds, the teacher would be telling the kids "we can't afford to do that song." I'm sure the writers and producers are well aware of the issue - they have to deal with this stuff in producing the show. The cynic in me says they're avoiding the issue to keep the industry happy.