Invitation for Beheading -)

I received the following email recently, which initiated a discussion.

Vladimir what is your comment on the following? "The solar water
heating industry needs to make the economic case on their own dime.
Taxpayers should not have to fund such feasibility studies in any form.
Furthermore, many academics and govt employees are biased in favor of solar
technologies, making the findings of such studies often the focus of heated
dispute among more 'objective' intellectuals.
 
 Statements such as "recovering the $6,000-$8,000 investment in short
order" have no basis in fact. The return on investment period is likely to
be 10-20 years or longer, and for many houses, the systems may be
impractical due to roof slope and orientation and lot shading throughout the
day.
 
 Ultimately, homeowners should not have to pay any costs towards
optional products they do not want in their homes. If the solar lobby cannot
make their products attractive to consumers without 'mandate handouts and
subsidies', that says a lot about the poor economics of their products.