For us, the whole purpose of going DVC was to "prepay" for larger rooms, which, for us, were a necessity. We have three kids already and are planning on at least one more (God permitting). We can't stand small confines with younger children because it means we have to be quiet (i.e., just stare/whisper at each other) once its bedtime for the youngest around 8pm or so. With 2BRs, we have more flexibility to spread out and just hang out at night after the youngest ones are down.