This question has been on my mind for a while. As gaming continues to take a step forward, the average controller is seen less and less. The 2 competitors that come to my mind are Nintendo and Activision. Activision keeps making guitar heros releasing new guitars,not to mention other guitars that look like certian rockstars guitars and i think ive said guitars to many times........GUITARS! Now that they moved on to the whole band gimmickadd alot of microphones and drums into the picture. Also dont forget about the new tony hawk game with the skateboard controller and the new DJ hero. Nintendo takes a different approach, they add periphrials that arent always nessecary for their gamesbut occasionally enhance gameplay such as Wii speak, wii wheel, wii zapper wii balance board, and wii motion plus ( well for right now its not nessecary for all wii games, only some). By the way im not including those 3rd party companies that release those fake tennis rackets and baseball bats peripherals. Now personally i think Nintendo is do to past periphrials ( like the NESzapper, turbo controller and rumble pack) as well as how many casual gamers have bought wii fit but everyones opinion is different. After all guitar hero sells like crazy! Theyre up to 5 in the main series, 3 band-centric series ( focusing on one band), 3 spin-off series ( focusing on many groups), 3 ds games, each one coming with theyre own guitar most of the time.Now the recent ones have whole band sets, its just crazy! So who do you think is the king of peripherals, who do you think has made more money off plastic items that inhance gameplay?