After a couple plays my group found the tent to be a bit lackluster in what it added to the game. So here are a couple alternate rules we came up with to make it a bit more fun.
Variant #1 (we tried this last game)- When you place the tent, name a tribe color and immediately collect one coin from the bank for each meeple matching that color on the eight surrounding tiles.
Variant #2 (I think we'll try this next game)- At the end of the game, the tent is worth 2 points for each of your camels on the eight surrounding tiles.
The problem I see is these variants make camel placing WAY better than other strategies. Please post your results, they sound interesting.