With adventures games it usually doesn't matter how old they are, unless you are put off by the graphics (and in this case the drawn ones are usually always good) because the genre doesn't get many new games and there's not much to improve anyway, except for innovating gameplay mechanics, which have stayed pretty much the same since the invention of point-and-click interface. I think there were some innovative things in the meantime, like some DS games with nifty stuff but otherwise I'm not really aware of any significant changes to the genre of text adventures.