this is a 5 MILLION $ economy, if we are stupid enough to not pay 120$ to potential do A LOT of good to bitcoins, well....
more bitcoin users and miners in the long run = +++++++++++++++++++++++ in my books, specially at the low cost of a SSL cert
in the long run, it will turn away many potential miners and bitcoin traders, and we will lose much more than what the SSL cert is worth. DO NOT OVERESTIMATE THE PEOPLE OF THE INTERWEBZ
Do you not get that people sometimes get a big red DONT TRUST THIS SITE from their browsers? they trust their browsers, not some random site they probably went to see if they could make $$ with their GPU (which sounds a bit doubtful to the normal person)