Huh, I seem to be in the minority, but I really like my preggo boobs. The first time, it was really fun to be a bombshell for a few weeks until my belly started growing, too, and ruined the effect, lol. Now the third time around, though, there really hasn't been any change.
After 2 babies, and breastfeeding both, the girls are definitely not the same - still bigger than original but of course not as perky. I'm ok with the tradeoff, since I always felt a little lacking in that department before. 