> Yet those going zero treatments is growing and it is being
> physically done, and the work isn't hard, just labor
> consuming in first years.

That is true.  Other things to consider before committing are

1.) there is no guarantee of success;

2.) several apparently good years may be followed by a wipe-out;

3.) there is no guarantee of a crop with bees that resist varroa
        (AFAIK, no known example of a clear-cut commercial success
        has yet been presented to show it can be done).

4.) going to pollination or chasing crops may result in an overload
        of parasites or  disease that cannot be handled without resorting
        to chemical controls;

5.) recovery from any setbacks may be slow, or impossible, especially
        if you depend on bees for a living and you run out of money;

6.) you are very limited in where you can obtain new stock;

7.) add your own sobering thoughts here...

In skydiving they say there are old skydivers and bold skydivers, but no 
old, bold skydivers.

allen 

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