I recently had a follow-up post to this idea. I think one of the main concerns about this topic is the fact that people need to make a living. For those people at research institutes and or medical schools (primarily in the U.S., which is all of my experience), grant money is really everything. If one doesn't have the original ideas in which to bring in the grant money, one may no longer have a job at the end of the day. So, perhaps we are moving toward a more 'open' science, but then do we need to also make food, shelter, and other basic needs 'open' as well? (!)