I've got a pen. I don't know what company gave it to me, but I got a pen. It's already broken and I didn't need the pen to start with, but that's probably not that important. What is important is that I got something for free. Also I've tried to win an Ipad a few times. I didn't win it, I got another pen.
As you've already probably guessed, I've been visiting the exhibit today. I wanted to check out a few companies and see some products. The danger is in the people with the badge-scanners. They will hunt you down and in return for a pen they scan your badge so they can spam you and make money off of you. Or as someone once cleverly put it: If you’re not paying for it, you’re not the customer. You’re the product being sold.