Hey guys, Looking to get a basic 2017 iMac 21.5 with 4k 8GB ram. The price of a refurb plus sales tax is $4 less than a new one from B&H ( no sales tax). I've heard the refurbs go through a more vigorous check up vs new models. Anyone have any opinion? Typically in this scenario I'd go for the new one vs the refurb.