I placed an order with my Prime membership today, and was pleasantly surprised to find an offer of $3 Amazon credit to be used for anything sold by Amazon in future purcahses. I'm not sure what the criteria for the offer is, but be sure to look out for it! I find this far more valuable than anything else they were offering for no-rush shipping up to this point; $5.99 prime pantry, $5 digital content, $1 digital content etc.