I'm having a moral dilemma. I love my current backpack (Gregory Deva 60), which I've had for a year and half, but she's way too heavy (5lbs 8oz) to bring on a thru hike. I want to get a lighter backpack, and I was thinking of returning the one I have to REI because I don't need two backpacks of that capacity, and getting the money back from my Gregory to buy a new pack would definitely help my budget. Would it be wrong to return it for these reasons even though I love it?