Just after Logos 6 debuted, I upgraded to Logos 6 Gold and I am pretty much tapped out for a while - although I love the product and feel that the upgrade to Gold was a good value. As a reward for my upgrade I have a $50 credit for a Logos purchase. I waited to see all of the "12 Days of Logos Deals" and nothing there worked. My credit expires March 2, 2015 so I have to use it within the next two months.
What are your recommendations for the best resources I can get for $50 - even if its just one book?