The post is about margin, not operating costs below this line.
Further it helps to understand this as a way to further understand credits offered for returning product when upgrading.
As a consumer upgrading can be very costly, and negotiating a return credit can be a challenge. This is part of the business model and a dealer making profits from returned goods can be lucrative.
Getting good deals is part of a buyers process while respecting a sellers ability to receive a fair profit.
Further it helps to understand this as a way to further understand credits offered for returning product when upgrading.
As a consumer upgrading can be very costly, and negotiating a return credit can be a challenge. This is part of the business model and a dealer making profits from returned goods can be lucrative.
Getting good deals is part of a buyers process while respecting a sellers ability to receive a fair profit.