This write-up leaves me a bit lost. First, is the "Pure 'Optical'" terminology simply marketing fluff?
Also, from the article: "Unlike the previous model which uses a "Pro-Aim" laser sensor with up to 8200 dpi, this new edition is built for PC gamers who prefer the unique feel of an optical sensor gliding over their mousepad."
??? Laser mice ARE optical mice. The only difference is the illumination. There's laser-illuminated mice, and then there's LED-illuminated mice. Both are optical. Laser mice are (assuming the quality of the device isn't poor) generally more accurate than LED mice, so I'm confused as to why moving away from a laser would make people think they're getting a better product, and why using a lower DPI (4000 vs. 8200) is a "better" thing? Not that at either of those DPI's you'll have problems...