Considering the gem prices asked lately for gem objects.. honestly it's not expensive due to it's old price. The Cabbage Hut is really worth the gems spent as does allow you to eventually get many nice additions for your kingdom.. saving your Cabbages. Eventually you may have two of them.
The only spine is the randomness of the objects offered, which in my opinion to be fair should be on a rotation base for ALL Tents and not lucky offers as many players end up not receiving what they desire.