You kind of right. WoW has been around for years and someone's link to the amount of different armour sets is a testament to that. I think from memory it was something like 1440 sets. That's a hell of a lot and I think they have been trying to raise the bar each time. Some of the sets look stupid and some look fine.
Gw2 has been out for 6 months and probably has a 10th of that number. You may think it looks boring but it seems they are trying to tone things like like the OP suggests. The beauty of the game is the way you can mix'n'match items and dye them to create a completely new set. Even though there is only about 120-130 sets the combination of those creates a huge amount of options. In fact its very hard to find two people that look identical.
there is even a reddit page on the topic. http://www.reddit.com/r/GuildWarsDyeJob They still look boring to you? If so perhaps you like the impossible armour, nothing wrong with that option either. I quite like the designs of some of the armour sets from Tera as well.