I've heard of book release events where the guests had to 'pay' (price of the book) to get in the door in exchange for a copy of the book being promoted. Though this is a sure way to sell books, do you think it's good or bad tactic to use? If you have done this, what was the outcome (i.e. did the guests feel like they were "forced" to buy the book, was the number of attendees better than expected, despite a cover charge)?
Thanks in advance for your replies and have a great weekend!