While a local sim is always cheaper than something resold, apps like Nomad make buying a 3-5GB esim in the range of $15-25 super easy. It might cost only $2 for that if you were to buy a local sim in-person, but as long as the cost is not absurd then it's worth the convenience of having internet as soon as the plane lands & while going through the airport without having to rely on the wifi.