I'm not sure whether this is entirely true or rather whether this is true for the more casual MMO player. You are describing the traditional Until Death Do Us Part way of playing MMOs. But GW2's (mostly) lack of vertical progression makes it really easy to return to the game after taking a break or playing something else (another MMO, e. g. GW3), without feeling that you have missed out on a lot.

By the way, this is one of the things I do not like about the new daily system (wizard vault), because it kinda discourages playing something else or taking a break, unless you are able to ...

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