Because one may be in the works for the PlayStation 3, according to a new report, which indicates that Metal Gear Solid and its two PlayStation 2 sequels may get a high-def facelift.
CVG cites the UK's Official PlayStation Magazine, which says that it's heard "insider whispers" that the first three Metal Gear Solid games are in the "facelift queue." There's clearly a precedent for that, with rumours of HD collections of God of War, Prince of Persia and Tomb Raider games bandied about before they were officially announced.
(We're still waiting on that Mortal Kombat HD Arcade Kollection, though.)
With Metal Gear Solid 4 approaching its third birthday and the next entry, Metal Gear Solid: Rising, not expected until 2012, a look back at the series might be a good idea for 2011.