I can totally see where you're coming from, man. After completing the storylines, PvP is basically the only interesting part of the game that remains. Unless you want to collect your titles in preparation for Guild Wars 2 (which is very boring, imo), the only part of Guild Wars you end up playing is the types of PvP, which does get boring without any new features. I don't feel the same way as you do (in saying that ArenaNet 'failed') but I do wish that there were more updates with the PvP side of the game. PvP is still fun for me nonetheless.

quote Rovert

I bet you will get all that you are looking for when the Guild Wars 2 game comes out.

Hopefully you're right, but I don't think they'll come out with a lot of new features. Guild Wars has already a vast amount of PvP features, so I honestly can't think of anything else they could do. Perhaps some PvP for the new races that they will be incorporating, but I'm fairly sure that's it.