From the SDCC blog.
Comic-Con is working hard to improve the online registration system and will launch Comic-Con 2014 badge preregistration sometime in early 2014. Only those that have purchased a Comic-Con 2013 4-Day attendee or 1-Day attendee badge, have a valid Member ID, and retain their actual Comic-Con 2013 badge* will be eligible to participate in 2014 badge preregistration. Professionals, guests of professionals, exhibitors, exhibitor purchased attendee badges, volunteers, staff, and press will not be allowed to participate in badge preregistration. Open online registration for the general public and all categories listed above will occur at a later date. If you did not attend Comic-Con 2013, you may participate in open online registration later this year. - See more at: http://www.comic-con.org/cci/2014-cci-badge-preregistration#sthash.Eeo3Y28s.dpufAs you can see SDCC is trying to find ways to get as many people in as they can and this is a interesting way to do this. I strongly urge my readers to click on the link and give the post a good read as the SDCC reg system will be different this year.