Good point metatron.
JWs (and xJWs), at least those of the "old school," have a unusual knowledge of a comparatively large list of individual Bible verses which they can quote, locate and (mis-)apply to virtually anything -- even though some Evangelicals seem to be pretty good at that too. In fact, the list is their (effective) "Bible".
The little time they have for simple Bible reading (encouraged in theory) is second to this thematic, "prooftext" use.
There were a few innovations in the 70s that have run contrary to this general trend (and have helped me to at least realise that I didn't really know the Bible although I could quote hundreds of verses). The Aid to Bible Understanding book which was thematic and doctrinal but was at least an introduction to a more comprehensive and less simplistic approach of "Biblical theology"; the introduction of Bible cursive readings and "highlights" in the TMS (in the late 70s I guess); the recording of entire Bible books on cassettes (I used them a lot at a time, and it helped me to understand the texts better); the few verse-by-verse commentaries (on James and 1 Peter)... Of course many of all of those innovations were introduced by people who have turned "apostate" since.