That restocking fee is too high. Go buy the refurbished Mac directly from Apple. I bought a refurbished 2015 13" retina MacBook Pro 256GB SSD directly from Apple for $1269 and I had a 14 day return, no restocking fee. The computer looks identical, as in condition, to the new 2015 13" retina MacBook Pro 256GB SSD I bought 3 weeks earlier.
I think anyone who is going to buy a Apple computer from BestBuy should understand what their return policy is beforehand. I certainly would.
A restocking fee on the return of a new computer that has been opened? Even Apple gives a 14 day return, no restocking fee, and I can open and use the computer during that period of time. Although, I have never done that with the exception of upgrading within the 14 day period.
As posted above, from very recent experience, Best Buy does not charge a restocking fee on new Apple laptops that have been opened, powered up and used by the purchaser.