gaming-capable and used to play games on are not the same thing. Go to any retail outlet and you'll find Pc gets about 20% shelf space.
Retail space wouldn’t indicate market size.
Ofcourse you can download PC games, but thats not relatively common. PC gaming these days is heading towards role play/strategy genre that takes years off your life, and the FPS coz of the mouse and keyboard control, byt FPS's on consoles are becoming popular, just depends on what you prefer as a control method.
Reference 1
http://www.strategyinformer.com/news/3766/pc-largest-single-platform-for-gaming-revenue-is-about-11-billionThe PC is the largest single platform for games with annual worldwide revenue of about $11 billion. This is more than any of the console and portable systems from Sony, Microsoft and Nintendo. • In emerging markets such as Asia and Eastern Europe the PC has become the de facto platform of choice for games as console systems have not had major penetration in most countries.
• Even in North America and Western Europe the PC is the leading single platform for games with over $6 billion in combined revenue from those markets.
• Broadband penetration has been a key driver of growth and revenue growth for PC games, and is directly tied to growth in broadband penetration.
• The three biggest trends in 2008 were 1) the growth of online digital distribution via services like Valve’s Steam; 2) the growth of free games with a virtual item purchase model and 3) the growing presence of game cards at major retailers like 7-Eleven.
• Top PC games regularly generate over $50 million at retail revenue but can generate substantially more in subscription and/or add-on revenue.
• Massively Multiplayer Online Games (MMOGs) are the leading products for both revenue and profits. Several Asian MMOGs are generating over $100 million in annual revenue after 5+ years on the market. World of Warcraft is generating over $1 billion in annual revenue. The Lich King expansion to World of Warcraft outsold its predecessor. In 2008, two major new subscription MMOGs (Warhammer Online and Age of Conan) sold over 1 million units at retail.
• Digital distribution, free-to-play models and retail game cards are well-established in Asia, but just starting to emerge in North America and Europe.
Reference 2
http://au.gamespot.com/news/6210424.html?tag=latestheadlines;title;5• According to the PCGA's 2008 Horizon's Report,
PC gaming software saw global revenues reach $12.7 billion in 2008, a year-over-year rise of $1.9 billion, or nearly 18 percent. Overall, the study found that the PC software and hardware market stood at $68 billion in 2008.
Reference 3
http://www.edge-online.com/news/ea-pc-becoming-worlds-largest-games-platform• "Electronic Arts chief financial officer Eric Brown has said that “the online part of our business is growing as much as 60% year over year" and that the
PC is rapidly becoming the largest gaming platform in the world."