apparantly keeps cost a bit of gold to maintain, but buying ingame cash to keep a keep claimed ... seems ridiculous to me tbh.
dunno what the amount of cash is people run around with tbh.
mky sorc is level 32 nad has 115 gold and i spend a lot of gold on repsecs just to try out things and don`t have a gathering skill.
dunno what high level hot potions cost in comparison though...