Choosing a Multi Wave Oscillator

Hi,

I am looking for help in choosing a Multi Wave Oscillator. I am aware that this is a Zapper Forum , but I couldn`t find any specific forum for MWOs, so I was hoping that there might be somebody here who either has some info or could tell me where to find more info.
I have found several companies selling them in very different price ranges, but most of them recite Lakhovsky a lot and don`t give that much information on their specific oscillator in comparison to other companie`s oscillators. But even if they did, I don`t have enough knowledge in electronics to make a sound decision.

So far I have found:
Zwphyrtechnologiy.com
ToolsforHealing.com
Altered-states.net
and their products range between $2000 and $3200, which is a big difference!

Does anybody have any info,recommendation or knows a forum which deals which MWOs?

thanks so much for any help I might be getting!
ILOM