Training Zones

Any thoughts on a training zone for those who want to play and level up but don't have much time and having to fight others for pits?  Could make a zone (similar to the barracks) where its just monster pits for training that you'd have to pay for access to.  I'd suggest significantly decreased drop rates in these zones so it's purely for Xp.  Could buy access to it and it be time-limited?  Just random thoughts -