You all owe Gary Gygax more than you can possibly imagine. The creator of Dungeons & Dragons, who passed away in 2008, had a big impact on tabletop gaming, of course, but those concepts he created for paper and dice are still widely used in video games today, especially RPGs.
http://lastchance.cc/363660/gary-gygax-co+creator-of-dd-dead-at-69%3C/a%3E%3C/p%3E
Some of the proceeds from sales will also go towards a project to get a statue of Gygax erected in Lake Geneva, WI.
1st Edition Premium Playerâs Handbook [Wizards of the Coast, via Reddit]