My prediction is about 600-700K ppv buys. Knowing that Cain Velasquez vs Junior Dos Santos fight a HW Championship fight on FOX tv is gonna lure lots of more people. In all reality I rather watch, PAC vs JMM but im not going to buy the PPV, and only know of 2 sports bars in my area airing the fight. I might just go watch it for free at a Casino. The UFC fight will definately take some potential buyers, with Cain being Mex-Am and fighting in LA area he's gonna pull alot of fans his way.