This game was like seeing The Matrix without anyone telling you the basic plot. Your first hacker news post where pg actually responds to it. Your first bungee jump. Your first go on a real gun. Your first pvp kill in eve online.
It was ground breaking. It blew your mind and sent a chill up your spine.
It's just one of those things that when it came out it was so ahead of its time. It opened your eyes to what could be done. Now it seems dated, then it was amazing.
I guess those that had that the first time round are all hoping it will do the same thing again.