What to do with other Factions' MICs?

[dumuzi]

Well, the title sums up my question pretty accurately. When you conquer a city from another faction, is there any reason not to raise the pre-existing MICs? The answer seems to be "no"

[Intranetusa]

Unless you can use it yourself, I usually raze the other faction's MICS when I need the money. Sometimes I just keep the other faction's MIC purely for aesthetic purposes :D

[Admetos]

It depends. At the bottom of the MIC's information scroll, there'll be something saying who that particular MIC is used by. For example, if you're playing as the Aeudi, it will say "Used by the Aedui, Arverni and Casse" (or something like that). If you share the MIC with the faction you captured the city off, there's not much point in destroying it, otherwise, yes, you should demolish it.

EDIT: Gah, too quick for me Intranetusa.

[Intranetusa]

EDIT: Gah, too quick for me Intranetusa.

But your post contains more detail. :)