I can see where you're coming from and I actually agree in the main. It's one reason I like the fact you can now turn XP gain off in WoW. I can just merrily run Scarlet Monkatorium until I have the Chain of the Scarlet Crusade. Being in a party should also make life easier than soloing, and faster too, but I'm simply arguing - as others seem to be - that soloing should be possible even if it isn't the most efficient.

However, I don't agree that because someone likes to solo, they should play games other than MMO. I can't think of terribly many games I enjoy as much as playing WoW, even alone. I like going out into the wilds and yadda yadda explore, but when I come back into a city I like to see it alive. I like to see people coming and going and etc.