Rubbish written about granite worktops

I do a lot of research on the Internet and come across some real
rubbish written about granite worktops. Now I'm no professional
salesman. My sales technique is to show the customer our product,
explain the benefits and why they should consider buying from us and
then leave the decision to them. However I do know that a sign of a
bad salesman is someone who relies on rubbishing the competition in
order to sell their product. I have read things like granite will
stain easy or it's hard to maintain. In America there was even a
campaign by the big artificial solid surface manufactures to scare
people about the danger of radon in granite. It has since been
scientifically proved that radon in granite posses no danger to humans
but it does show the tactics that some companies big a small will us
to stifle competition.