So Mr. Sutherland showed us a video about video games industry, for me, I've already known many of those stuff. Playing video games' about fun, and fun includes game-play, graphic, it would be cool if a game can play with friends which includes mic speak through the game.
For me, Video game's kind of important for me, and it could also be the same thing as many teenagers. Most hot video games that I know are ,PC games(PC=personal computer), PS3, Xbox360, Wii. And for potable video games, most people play PSP and NDSI. The company of these consoles are trying to make many money, because of that, they make more games, invent things that make the console more easily to control and play. Since they need more ideas, they could hire more people to work for them, it could be many people and many ideas are out. As a result, it makes more games come out, and it comes out way faster. These facts could make the price of games to increase. Therefore, it makes gamers need to pay more for games. There's a type of game call FPS, which means first person shooting. The reason of myself think it's a big category to attract players' because it's a big challenge since you need to have fast reaction, skills, and some other facts. Furthermore, you most of them can let people to use mic to socialize with people, and have plans to play against the other team. These game are mostly cost more than the others.
I have a PS2 and a PC. I spend more time on my PC and I play games that has already hacked.(probably they changed something about codes and scripts in the game) I understand how much could a PRO gamer could cost to have nice accessories to play. Here's a website for computer's stuff, http://www.razerzone.com/, you can see how a mouse could cost, $129, that's huge amount of money, people could really spend hundreds and hundreds on games. If a person buy games at store instead of my way, it would even cost more!

PS: PC games' about computer hardware and other material.
Display card,CPU- nice display card can cost >$100.
RAM- games will use RAM, if there are not enough memory, it cost money too.

Mice- higher DPI(dots per inch) cost higher amount of money because of better accurate.
Surface- there are 2 types, speed, control. Speed can let you to move your mice faster and control can let you aim smoothly.

Of course, there are more accessories and it can cost so much money.