Final Fantasy XI is still an overall success, and has more than a few accomplishments under its belt. It's a successful MMORPG on a console, has its own fan convention, has eight years of history, and clearly has made enough an impact to have two subsequent Final Fantasy games with clear ties to it.
All that being said, though, it's possible that you may still not have played it, despite a variety of excellent deals available. If you fall under that header and want an excuse at checking it out in anticipation of Final Fantasy XIV, or if you're a longtime fan hoping for a unique piece of memorabilia, Square-Enix is giving away an excellent little incentive.
Register as a Square-Enix member by February 22nd, and you have a chance to win one of four copies of the Final Fantasy XI Ultimate Collection -- signed by the game's producer, Hiromichi Tanaka. Fans eagerly anticipating Final Fantasy XIV will likely recall that registering for the game's beta also required a member account, so this only further sweetens the deal. If the chance sounds appealing, it's well worth the few minutes it takes to register.