Video Camera housing frustrations $$$

[freediverND]

Why are video camera housings so much $$$??!!! Is there any out there that don't cost twice as much as the camera? I've looked at many popular brands and unless I'm missing something there aren't too many (or any??) under $600... mostly over $800. What about this Jellow Jacket... kinda a kit thing.. anyone know anything about those, or anything else that might be reasonably priced and at the same time good quality?
And then the kicker, seems not to many housings are compatible with my Sony TRV 130.. Apparently it's right what they say.... check into the housings first and then check into the camera. Wish I'd a known.
Fred