Ok, thinking about getting Logos. Also trying to decide what package to get and what add-ons. My question is this, some of the resources are cheaper through Amazon Kindle (for example the Holman Commentaries are $150 through Logos, $120 through Kindle). What's the advantages/disadvantages to using Logos and Kindle? I mean, is it better to get the resources through Logos even if they are more expensive? Better to go through Kindle, if they are cheaper?