Why are you even thinking of this? If you intended to resell the camera at maximum profit, you lost that chance when you opened the box. You paid at least $600 less than new and you are not satisfied? You could sell the 5D right now for at least what you paid for it. Again, why are you even thinking of this?
I'm not thinking about maximum profit, I'm wondering if there is a market if I decide to sell it. I have about a week to return it, so having last minute second thoughts. I wasn't expecting the pin hole in the bottom of the camera. It doesn't affect the operation of the camera, but it says "I'm special" and may cause problems when trying to sell it. I have read some online articles on Canon factory refurbs and it sounds like the odds are very good that there never was any sort of problem with it and if there was, odds are that Canon has fixed it. A lot of people have bought refurbished and never had a problem.
But if something happens and I need money now or in the future and I am unable to sell it, I've just thrown away $2200. I keep going back and forth on returning. Especially when I see comments like "there are people(like me), would never buy a used-salvaged-item".