price will depend on:
1 who youre hosting your site(s) with.
2 do you want a brand name ssl that will stand up to scrutiny
3 how techy you are (FREE ssl's need you to install them)
if it were me starting from fresh (and im not techy enough to confidently do an ssl installation), i would
1 set up a brand new domain at namecheap (approx $10 per year),
2 get their cheapest hosting account (approx $40 per year),
3 put the comodo ssl on that (approx $10 per year) and then
4 have all of the content for all of my fanpages hosted on that single domain and they would all be covered by the one comodo ssl. (approx FREE forever)
if you already have a domain name, you just forward it to namecheaps hosting and buy the ssl at name cheap - total cost per year = $50.
when i sorted this out a few months ago, i think hostgator who i normally host with were talking in terms of $50 per year PLUS HOSTING for exactly the same comodo ssl as namecheap charge $10 a year for.
yes, i investigated the whole FREE ssl thing too and to be honest, i thought "what are you doing - this is your business youre playing around with here - what if your FREE SSL stops working & you cant solve it?"