I wonder if out of that 63% if the people polled were counting playing Facebook games and solitaire lol.

I think it's more that genres like MMOs are much more popular on PC and demand much greater time investments. As well as web games being available to many people during work hours which primarily boost the PC play times. And the rise of F2P business models of course allows many gamers to get hundreds of hours of gameplay without paying a cent which is another reason why PC time is a little dispraportiante to revenue compaired to the day one $60 driven console market. Piracy's impact is much smaller than it once was and is much overblown in it's impact much like used games in the console market.

Well it's more that as console have grown more capable and games have gotten much more expensive it just makes sense to make games multiplatform these days. Unless a game requires very specific controls or an open platform without the publishing requirements of a console it makes no sense to limit the market of a game to just one platform unless the platform maker is footing the bill. Many of the most popular games on consoles are from ex PC developers and franchises, CoD, Battlefeild and The Elder Scrolls (3 of the biggest 3rd party franchises on consoles right mow) started out as a PC exclusives for example. So you could just as much say that console gamers are playing ex PC style games. And most of the most popular games on PC are still games that aren't available on consoles for example arguably the biggest game in the world right now League of Legends with it's 32+ million unique players a month and growing is a PC only game. Console ports are actually a very small segment of the market on PC. Diablo 3 for example sold over 12 million units on PC wich is way more than any port of a console game on PC I have ever heard of.

It looks like Dragon Quest X could be in good hands if it makes it westward. MMOs do best on PC anyway.

I think people are wrong to suggest that PC gaming will ever die, but I don't think these statistics are very good evidence against the sentiment.

Like others have said, when people use the statement PC gaming is dead, they are typically referring to a type of PC gaming, specifically what is analogous to console gaming. Even though PC gaming as a whole can never die because it entails so much that consoles don't do or don't do well (social site gaming, mmo, rts, browser, f2p, and OS packed in games to name a few), because the statistic probably encompasses all of the above, it doesn't answer what those making the claim that PC gaming is dead is referring to.

The reason some might believe this can be seen when stacking AAA titles' sales on consoles against PC. They just don't compare. Blockbusters on console rarely sell well on PC even though they are typically the superior version, because of piracy. So a lot of publishers make the PC version secondary and release the title late or not at all and with little marketing relative to console counterparts. And don't forget emulator gaming. Similar to piracy, it allows a lot of PC users to game, and yet it returns nothing (in terms of monetary value) to the industry.

But PC gaming won't die, because the platform has its own exclusives that sell despite notions of piracy (look at Blizzard games, The Sims and more). Also, if anything, PC gaming will grow now that nextgen console are pretty much PCs suped up to be specialized, standardized gaming machines. The similarity of the innards will likely ensure that lots more titles get ported sooner than later.

Still, the OP's statistic accounts for too broad a concept to make a clear statement about PC Gaming, because it includes too many variables in gaming that don't make money and probably won't cause growth within the gaming industry for the PC. And that's not even taking into account all this bad air filled with statements that the PC is dying and sales over all (not in gaming) are down due to the up-rise of tablets and cloud computing.

http://venturebeat.com/2013/07/10/rip-pc-shipments-down-11-as-pc-sales-drop-for-record-5-quarters/

Yeah but I bet that wii sports and kinect also count for consoles.

not surprising considering league of legends the most played game on the planet is on pc.

If you guys are having trouble understanding how big the game is, in one month it is played more then the entire playtime of the halo franchise.

What many people fail to realse is that the mmo/moba genra brings in a lot of gamers, gamers that don't have steam, gamers that don't play non moba/mmo games. People don't associate this crowd with pc gamers, even they themselves don't call themselves pc gamers. It is not that console gamers have migrated but that mmo/moba games have grasped the "casual" gamers, ones that play one or two games a year like the cod and fifa gamers. 

Many people game on pc, but the vast majority aren't people who always use steam and who have monster pcs. Just like the majority of console gamers they play multiplayer games.

Valve takes 30% of every game sold on steam.