Ticket rebates

I'm not sure if this should be in off topics, or here. So here it is. I just got an email from Live Nation thanking me for a recent purchase of HOB tickets (GPN) and giving me a $10 credit for future use on a HOB purchase as a seasonal gift. Hey, it is free money. I don't know how long they are doing it for,but if you are thinking about doing a HOB concert next year (JOE in Vegas!), buy now and take advantage.
edit: Here is the link to participating venues.
http://promo.livenation.com/fanreward/venues.html
Rick