I've never owned Logos before, but now that I'm out of seminary I'm considering it. I downloaded the free iPad app and love it, and see how it might be worth it to spend a few bucks to buy a base package. But, here's my question: once you buy a base package, what is the cost like to upgrade to the next package up? For instance, the retail price of the green "Bible Study" base package is $264.95, and the price of the Leader's edition is $324.95 (not including the 20% discounts currently being offered). If I buy the Bible Study package, and later want to upgrade to Leader's edition, do I pay the difference of $60, or something closer to the $325?
Thanks,
Chris