greekguy
Missed the Boat
i don't know if this has been mentioned before, but i had this really good idea the other night and i've got to say it. ok, back in civ 2, when you discovered a certain tech (i think one of them was gunpowder) your barracks would be sold and you would have to rebuild them. this was so because they were "obsolete" compared to the new technology just discovered. now i was thinking what if this idea was expanded. as well in civ 3, when you reached IA and MA, your buildings i.e. barracks and colleseums, would change style to fit the new era. i think that that is too easy. changing an ancient colleseum to a stadium or arena takes time, effort, and cash. now what if you combine the 2 ideas. so say, you have barracks, in the AA, and you just hit the Middle ages. your barracks are now obsolete. so your MIL advisor, should pop up and say (or something like this) "our barracks our obsolete", then 2 options would be there: upgrade barracks for a cost or don't upgrade them. if you choose the former, your barracks work the same, no problem. if you choose the latter then if would say something like "our barracks have fallen into ruin!!" now they are useless. but why would anyone do this? in our modern world, ancient structures and sites are visted often by lots of people. so those now worthless ancient barracks in civ, would now generate culture or maybe 1 gpt. the effect could work differently for any building at all. this would allow players to choose, do i want to pay cash to keep a building running or do i want some culture or extra cash to make their structure an antique. i think this would make the game more realistic, by showing how buildings and structures fall into ruin through the ages because they are no longer useful, and they are not modernized. what do you think. 
