I got a 30 day free FCT with Trainz 2004, that enticed me enough to buy a Lifetime First Class Ticket. Without the free 30 day ticket, I probably would never have bought the lifetime ticket...
They should never have got rid off the free 30 day tickets, they give people the chance to sample a very fast DLS, and most will buy a new ticket when the old one runs out. Like I did...