@rally1237: If the developers made everything free they wouldn't make any money from the game. If they didn't make any money from the game they wouldn't have any incentive to make the game at all. If they didn't make the game we wouldn't have a game to play. Would you prefer some things that need to be paid for, or no game at all?
@zourafox2: I don't know if you understand this, but this game is an MMO. They'll keep adding content, but because of how much work it takes to get the game to this stage they aren't going to make a completely new game.
Since some people can't find out how to fill the vials, here's how: First click on the red button to select the vial you want to fill. This will require a little bit of trial and error to find the right one. Then just click on the lever next to the symbol. Click + so others can see.