I see parents buying their kids gifts at the store, wasn't it JUST Christmas!!?

I haven't gotten our kids a single thing and we also didn't go overboard for Christmas - $150 TOTAL for the both of them together! I see people even a few days after Christmas buying their kids toys, geez! No wonder some kids get spoiled! We are not buying gifts for atleast 2-3 months after Christmas and if we do just a few bucks. What is your policy?