This falls heavily under the discussion of Bot Rules & Regulations in http://forum.toribash.com/showthread.php?t=610852

Yes having a set betting server run by a bot that the dev's created
would be much more efficient than having player-made betting servers, HOWEVER

I say this from experience and nothing else...Many clans make the majority of their clan bank's TC off of betting servers. Eliminating the need for clan-made betting servers would essentially cripple the economy of that clan.

However, I mentioned in http://forum.toribash.com/showthread.php?t=610852 that if clans could pay say...10k tc per hour (including a global) with certain limitations on how long a server can be owned by a clan, I'd be all for this.