i think you saw the other thread about +5 more roundsWas pretty sure I'd seen this. big +1
With both mc and css variants of some maps, you can end up playing on the same layout again and again. I've had multiple times where, say, we were playing mc_dolls, then voted into de_dolls. The maps are different in feel but are the same layout, so the gameplay gets a bit same'y. We have a bunch of maps that I've seen in rotation, but they never get voted into play.