No experience here either, but have looked at orchidariums online. Most don't put out enough light for any of my orchids, so that would be my main concern in considering one. I have also read that sometimes it is hard to regulate the right amount of humidity.

I think in the member's grow area section of this forum, some folks have put pictures of their homemade orchid cases. I've thought about that too, but am lazy.

If you do get one, please let us know how it works out for you!