I have written a post on the official EU WoW forums (can't link yet as a new forum member) addressing the game mechanics of archaeology. The reason for bringing it up here is that I would also like to hear what the take is on the mechanics of archaeology by the MMO-champion community.
The point I am trying to make in this post is that the established ways to get PvE loot in WoW has a finite level of input from the player.
If you participate in a raid with part of the goal being to obtain a certain item from a certain boss and the particular item in question did not drop, you can ask yourself: Have I done all that I could to obtain this item? Yes, you did. The game mechanics prevent you from further pursuing the item for that week.
If you commit yourself to (Heroic) dungeons in order to obtain justice points to buy gear from the JP vendor, you have game mechanics there to balance the amount of effort put in to the obtainable rewards (i.e. JP cap, limited amount of obtainable gear).
When asking yourself the same question when it comes to archaeology: Have i done all that I can to obtain this item? Until you actually obtain the item you pursue, your answer will always be, no. Archaeology puts the ball firmly in the players court. You can always keep grinding away until you finally obtain your epic PvE item. This is something I find very disturbing. There is no mechanic in play to protect the player form his or her pursuit of the object of their desire. This simply promotes an unhealthy dedication to the game. You only have to read the comments on this forum and Wowhead to see the insane amount of time players put into obtaining these rare archaeology PvE items.
Changing one of the three mechanics of archaeology would make sure some form of checks and balances are introduced to archaeology:
1) Do not put current level epic items in the archaeology loot/artifact table;
2) Put a cap on the number of sites that can be excavated;
3) Make the assignment of rare artifacts to be solved less random.
So my question to you all, what is your take on this?