Since you mention gaming, do you have a GPU or were ya planning to use the iGP built into the processor? Not all of the processors you list have one so I wanted to check. Some of the chips you mention are quad-core, others are six-core. If you don't need the GPU then just get more cores, but again it depends if you already have a GPU.
Regarding the price reductions.... I wouldn't expect to see price drops that large. Newegg still sells really old chips until they run out of stock, with hardly any discount (if any) unless the manufacturer gives one to them.