Ha - so you're the one that likes that purple color... I found some AD700 from an Australian vendor on eBay for $133 US but shipping is about $30. The AD700X are $140 shipped on Amazon so I'll need to think it over. I have to also admit I'm also really interested in the Q701 from AKG at $200 on Amazon, they offer more usability than the AD700/X while still being great for FPS's....
At $200 why not get the MA900?
More comfortable than Q701
More genre bandwidth than Q701
Still a great gaming option, but I could not give an accurate comparison between AD700 and MA900 for competitive FPS. I think the AD700 are good value but they certainly aren't for just anyone. You need to have a treble polite source or your ears will feel hell