I'm a big Guild Wars 2 fan, though I don't play that much anymore. Often in the game, Guild Wars 1 references, and stories told by players of how great it was, made me want to try it.
It still fully works, and can be played. But for me, it was a no-go. I could live with the graphics, and the environments were fine. Good music and sounds.
The interface killed it for me. Dozens of windows, shortcuts, clunky ways of doing things, the inventory. I couldn't take it anymore after a few hours.
It's not about disliking old interfaces. I basically live on the Linux-shell, and I still play xcom: ufo-defense. But the gw1 one is all over the place, like it hasn't been planned but just happened by random people dropping into the studio and adding some stuff for the fun of it.
Come to think about it, it isn't even about old games. I couldn't play Xenonauts for the same reason. I suppose I just don't enjoy clunky interfaces...