Really? Have you even read Apple's terms and conditions for AppleCare+ yourself or is your advice based on hearsay as it appears?
If you actually read their terms and conditions you will see on the very first part - let me repeat that for those like yourself who don't read - the very first part specifically states:
"Apple will not provide Hardware Services or ADH Services in the following circumstances:
to protect against normal wear and tear, or to repair cosmetic damage not affecting the functionality of the Covered Equipment;"
I have AppleCare+ and I do due diligence and protect my equipments myself. AppleCare+ is an insurance, not a license to be THAT person.