Trade in price vs freebie.

So I preordered the 4 pro with the 10% off code bringing it down to $269. The last time I ordered my 3S they wrote that I was one of the first orders and I got a freebee worth about $100. Now I received the ‘trade in deal’ code to get a set for $199. I wonder if I should cancel my preorder and score the $199 on launch day. Also, Rayneo has a 30 day price protection, but I don’t know if that applies to the ‘trade in’ deal?