Weird. My brother in law and I recently went to Walmart to pick up a PS4 controller. He saw a price online and similar to your experience he realized the in store price was hiring. He showed the manager and they gave it to him for the online price. He told me he did a similar thing the week before and now he always check online for Walmart purchases above $20 or so because they may be cheaper. I don't know why you weren't price matched.