Ok, first things first - keeping an item wrapped in cheap shrink wrap that's intended for display is just plain tacky. I was just at Winkle's place in Barcelona and all the boards on his wall were still in half ripped shrink wrap, and it looked so shitty. Do you leave other items you bought in the protective plastic wrap? No. Especially not anything you consider art.
If you're worried about reselling it, and for some reason the buyer wants to pay more for a plastic wrapped board, either take a pic of it before you remove the wrap and then just get it re-wrapped when you sell it so nobody's the wiser, or get the inexpensive bags that fit decks and are much better quality than thin plastic wrap that offers almost no protection. Hang the board as usual. The main thing you should be worried about is that displaying a board in any fashion increases the chance that it will warp, compared to keeping it in a well aligned stack of similar concave decks. I would think warpage is more of a concern than whether or not it's in plastic wrap. I store all my collection decks with foam sheets between them, in boxes... and I alternate the 2 or 3 I have on display every few months.