Rotating Hydro Gardens really?

[ilikecheese]

Iv been waiting for some article in high times about these things but...
1. Unless conservation of space is the main objective, is there any majorbenefits to these "advance-by-appearance" rotating gardens? Because i cant think of any real advantages concerning plant needs other than eliminating the need to rotate your set up.

2. I'm looking in to converting to an aeroponic systems but cant determine whether its in my favor to buy one in a box or construct my own-if this is the case what are some common things to watch out for as far as materials that may be more susceptable to mold-bacteria or likely to fail/demand regular maintainence