Uhmm... have you even played the game? It's not like that at all. The quests are actually quite diverse and there's a lot of bonus quests and quests that run along the story line and such. Also, they've already released some updates... for free! They also have plans to release more in the future (for a cost). That's how they make their money. Not releasing any updates or expansions would make them go bankrupt. The game can seem a little tedious at times, but not very often. I've just been questing and exploring so far. There's no repetitive killing at all. I hate repetitive, tedious types, which is why I stay away from WoW and quit playing Diablo. Guild Wars certainly has a lot more to offer, you just have to actually give it a chance to see.
Also, just to let you know there are no guild or party shortages. As a matter of fact new players are usually bombarded by so many guilds offering membership that it's confusing! The Guild I joined just PVPs for fun, so there's no pressure. There's lots of guilds like that, you just need to look (and not that hard).
And also, I'm not sure why you're complaining about the PVP system. Do you just expect them to allow you to START with everything unlocked? Most games also make you level up your character rather than offer you the option of creating a new high lvl PVP char. I don't really know what you expect...