@Ralph Lee When you add up cameras, cables, computers, tvs, monitors, digital dvrs for three event L tournament it is a lot. This year I bought 4 sets of digital water proof wireless rigs that really, really work and that was $850. Plus I have spares since a lot of this gear is not available at Wal-mart when it rains on it or a 4 wheeler runs over it, etc.
For Class C here in Houston all of our courses have been surveyed over and over and are not an issue. For slalom you can put up end course and a TV pretty cheap and you are really close to L -- other than judging gates with video. Who misses gates anyway?