There is a huge contrast and purpose in the hearts and minds of each researcher. I'm of the opinion that we are sharing the work we have done, as a means of paying those back that have helped us along the way. We have all been recipients of other researchers being gracious with us. Sending us packages of work they have done at no charge. How can we justify wanting to put a price on our works. Why would we not want to bless others with the fruit of our labors. Afterall, we are all cousins are we not? Go forth and do good works, thinking of others first. Make your research available to all, always, unconditionally!