Well, actually some magazine company offered me two free subscriptions if I paid for two others. What they DID was give me EIGHTEEN magazine subscriptions for four years and insisted I pay for all of them. So I paid for none of them.
Becareful with these things. I signed up for 12 free issues of EGM, and 3 issues into it I was sent a bill...for the Official PSM. I wrote a fat cancel on the bill, and sent it back to them. I'm not due for another magazine for another few weeks, so who knows what is gonna happen.