oney they should come out with an expansion. Its not like Anet is a huge corporation that has thousands of employees.
Then if you paid $6 and played game for a month, you got your monies worth. A year and you have gotten your monies many times over. You paid for one game. You should have no expectations for anything else.
Micro-transactions are the constant flow of income that fund fixes, work, changes, these mini-expansions called the Living Story. Without that source of income and expecting the game to forever free after the initial transaction also leads to the point if you (or anyone in the playerbase0 pays nothing else ever again, then you should expect nothing ever again.