Sorry about the wait, my laptop got infected by a virus and that basically took precedence over gaming. XD
Well, I was thinking more of mid-to-late game sweeping, actually. My team just beat Crasher Wake, I'm ready to challenge Fantina, and I'll have the gym badge necessary to control Lv. 70 and up Pokemon in just a short while. So yeah, at this point an egg would do no good.
Though I suppose a custom-built egg would also be nice, if a little more annoying to train with...