I agree with Johnagod. It is supply and demand. To much supply and less demand from less players means prices are low. Trying to fix the game with changes that affect the few players we have will shorten the life of the game. There are some countries that play that can not sustain the points needed to keep upgrading gear. Thus the Guild tagging was great. Less gear needed for guild members. If you want to fix the game then help find ways to bring more player base to the game. then prices will go back up.
I think there needs to be a level cap established. I would rather have maybe the ability to upgrade my gear or set of gear versus continuing to level my character. This will establish less turn over in gear, but stronger gear items or gear sets.
Maybe once you earn enough experience you can upgrade an item of gear you own. Or you can increase one skill, thus the skill can be stronger, not the over all level of the character. This would create random differences in players and make it more interesting as so many options to improve skills or gear. Thus might help bring back dead sets that have been made obsolete by new sets.
Could ramble on all night on neat things to help the game, but the true question is "Do they really want the Game to Live on???" or are we all a dying breed of hard core players trying to squeeze a little more life out of our game?