A physicist called Frank Chen doesn't believe open access is necessary, APS Physics, April 2007, and that someone advocating in favour of it "has no idea of how a physicist thinks."
"When I have an interesting problem to solve, I like to work on it myself and see how far I can get. If I come up with an elegant solution, so much the better. I don’t want to first see what others have done and become biased and perhaps fall into the same pitfalls."
Er... well I suppose you have to admire his absolute confidence in his own abilities.