Oh Wise One
I guess cities that primarily cater would place a lower value on goods? That would make sense as a strategy for them. I couldn't afford it. On the other hand, I haven't negotiated any encounters in a few weeks now, and probably place a lower value on troops because I produce so many of them. If I don't feel like I have a better than 50% chance to fight past an encounter on the spire, that's where I stop.