I would love to see an game option for allowing city razing or the "Salt the Earth" effect that is currently used. The current rule makes the cities location unable to ever be settled again. This is a big deal. I have played medium and larger maps, where I never find more than 2 places to settle new cities. Loosing half permenently is a big deal.

I like to have the option to play with "Salt the Earth" or not. Most great strategy games have game play options to fiddle with.

A little off topic, if a city is razed. Shouldn't it leave a ruine? A ruine that eventually attracts monsters?