I was looking around to find a place that sells disposable razors in big bulk packs and found this place
http://www.razorsdirect.com/page/page/637542.htm , they have good deals when you buy a big batch for example a 50 count pack of Gillette Atra is $56.99 ,100 pack Atra is $109.99 and a 50 count pack of Gillette Sensor is $59.99, 100 pack Sensor is $114.99, it says free shipping, no doubt its figured in, but still these prices are good when you add up what you would pay at Walmart or a pharmacy,ect. They have all sorts of razors, injectors, Mach 3's, Fusions,Quattro,Sensors,Atras, Double Edge, ect.