No, I understand the law, but again, each state defines contest, sweepstakes, or lottery differently. Regardless, if you feel your rights are being violated and state law is being broken, feel free to file a complaint with your local DA or Consumer Affairs Department.
And again, if you want to be technical, the rules don't say anything about purchasing anything:
To qualify, you must (1) leave a resellerrating, and (2) email
freecase@svc.com
Anyone with access to the internet and an e-mail account can perform the two requirements for contest entry. But then again, people like you would argue that it requires the purchase of a PC and internet service.
Chiz