I have a green spy and want to sell it in order to get a rare Balenciaga. The green spy is gorgeous but I like shoulder bags - this one works fine in the warmer months but not for the looong falls and winter where I live. Which one would be more practical/versatile and holds its value? The Balenciaga would be a rare black first/classique OR a rose city. Not sure which one yet - but I'm leaning towards the black first. I'd love any thoughts, thanks girls!