HA! saw that in the FFX "OMG Really!?!?" thread... anyway the answer's simple... cause it's a masterpiece in gaming...

truth is that's totally subjective... some people may like great games like FF VII, X, & XIII while other like complete dreck like Call of Duty or Madden Franchises, of course the no-necks and Jarhead wannabe's will see it the other way saying their games are the best ever while RPGS are total crap... that line is further divided between Western and JRPG fans, and even further between those two groups, FF Vs DQ for example, and yet again, ad nausium...
point being the games that speak to you most personally are the ones that will stick with you and warrant repeated replays, while those that don't just sit on the shelf year after year...