We've updated the Buy Credits page to make it easier to find and understand. WGT is free to play, and we also feature free weekly and monthly tournaments. For players who want to win big prizes, we have tournaments that have an entry fee, usually ranging from $1 (100 credits) to $5 (500 credits). The new page is easy and secure, and gets you into the tournaments with the awesome prizes!
See full tournaments page: http://www.wgt.com/tournaments
See what's new in December: http://www.wgt.com/news/archive/2008/12/01/new-december-tournaments.aspx