I get why you don’t feel guilty about it (I wouldn’t either), but another thing to consider is what impact it has. From Apple’s perspective, this is clear abuse (the goal of this policy is for new buyers to be able to return a product they don’t like, not a loaner service, and they take a 10% loss when they then sell the device as refurb). If too many people do it, they will make the policy more strict and everybody will loose this great escape hatchet for buying the wrong thing.

(Notice this is not EU mandated 14 day right of withdrawal, which only allows you to unpack and reasonably determine suitability, i.e. do a bit more than what you could do in a store. Heavily using the computer for 14 days is not permitted by it and is only allowed by Apple’s generous policy.)