Better build quality
First off ,best buy near me did not have any 3's and if they did they were $449
Second off, when i bought my original 3 on launch day,i went thru 3 before i received an acceptable screen.
The 4 i ordered with my refurb 3 had bad screen bleed and lousy color.the 3
Refurb was perfect,no screen bleed,perfect color-white whites,no blue,or yellow.
I had the 3&4 side by side and the 3 was by far better.
I believe the refurb stuff goes thru a much more quality control program than the new stuff.
For $379,1 yr warranty you cannot go wrong.
I have had much better luck with apple refurb quality than product launch quality.
The program you talk about is a store by store program ,not available for order,
And if not available in your area store the refurb thru apple is the way to go.