And both have the same warranty and Apple telephone support, but there is a difference in price. I have purchased three refurbished MBPs and I can recommend that option.
I can confirm the conditions of refurbs bought directly from Apple. At last count our family has seven refurb Macs including two MBPs, plus an iPad and two iPods.
"Lightly used" did not apply--each unit was spotless. All are still in service, including our frst refurb, a Beige G3 tower bought in 1999 and now used as a photo server.
I won't buy anything but a refurb if that option is available.