This is why I'm a fan of open data / data sharing, and why I wish federal grants would more emphasize intermediate steps that could lead to papers rather than the production of papers themselves. The barriers to data collection are quite large (it's at least $1 million to acquire an MRI scanner in my field, neuroimaging; a huge fixed cost that most individuals would never be able to afford), but the cost of hosting those data once they're acquired is trivial. Once up on the net and publicly shared, anyone can take a crack at the the data and see what they can find.