If you notice, they sell a retail version and an OEM version. Usually, the OEMs don't include instructions, fancy packaging, etc. (not really a legal issue more of a computer hardware/software issue). If you would have searched earlier, before they pulled the product, you would have seen that the OEM was available as well. It was about $50 cheaper, but no rebates were available.

By the way, I emailed Dell regarding the situation and will post their reply.

You can always return it if it doesn't work out, but the fine print on the rebate forms really doesn't leave Dell with any wiggle room.