Perhaps, I'm wrong ... because it occurs to me the Nativity tells us something Easter doesn't.
Easter tells of His great love. A love so big He would go through physical pain and death to rescue us from the wages of our own sin.
He could have just appeared on the earth as a grown man and traveled around as a speaker and accomplished getting himself crucified for us. I mean, anyone with his radical ideas could manage to make himself very unpopular with the powers that be.
But the Nativity tells us something different: He got inside of man and walked around in his shoes so we could never say He doesn't understand us, He doesn't know how we feel. He experienced the kind of relationships we have, the work days, the endless stress of providing our own income, the tensions of just getting along with unreasonable people. Why, He even knows what it is like to get up day after day after day and do the same things over again and again, perhaps even thinking, "What's the use?"
I've always loved Eugene Petersen's version of John 1;14,