Arguably, it should be the other way around.
Think about it; how popular is manga and anime in the United States? Not very, in comparison to gaming. And ironically, the majority of the people who do read manga in the good ol' US of A also tend to be computer nerds due to the share of love for manga on the internet.
But if that's even somewhat true, then those who read manga have a higher chance of knowing how to get a hold of a virtual copy of what they want than an average console jockey. And this is truly sad, because manga and anime creators don't get that much money to begin with; maybe they might get money from their fanboyism in Japan or another native country, but here the support in the way of money dwindles to this fad.
Now, gamers on the other hand don't necessarily need to be computer experts; consider the popularity of the consoles for a moment. Sure, gamers will go to the internet for their love of consoles [Hell, we're on the Escapist], but the majority of young adults love video games on consoles, and therefore no directly tied to a computer. This means that yes, games are pirated and whatnot, but there's always going to be the large, large console crowd who can't pirate games [due to the difficulty of console pirating if you have no idea what you're getting into]. Games, for the most part, will always have a buying crowd. In the realm anime and manga, this is sadly not true.
And what makes it worse is the difficulty level between getting manga for free and software for free. A level of dedication has to go to learning the ways of pirating before you pirate a piece of software, whether that be the simple access to a website with illegal software on it or learning how to operate a key-gen. A manga lover has to search in google or any other search engine [which, considering that you HAVE internet, isn't a far stretch to say there's no dedication there] the chances of finding a website with a free virtual copy of what they're looking for is quite high. And, what do we do about it? Nothing. Sure, take down a site, but two more will pop up. And I'm not saying there's something we can do, because I honestly don't know what we can do. Sure, stricter laws might work for awhile, but the interests of foreign comic-book makers just aren't that of the government of the United States. The United States is more worried about stopping lolis [enforcing moral law] than stopping the pirating of one's creative work [stealing one's art]. Priorities anyone?
I don't support the acquisition of software or creative works without money if money has been put in to it, whether that may be a good thing or a bad thing. I believe that creative works should all be free, because everyone should be able to experience such works without restriction. But in a money driven world, and rightfully so, this cannot be true without a truly revolutionary change to the way we see value and exchange.