When thinking about various economic phenomena I have often found it useful to separate out the value of an item purely for its own sake from the value when you also consider the fact that you may resell it at some future point. I just wondered if this was something that economists regularly consider and if so what are these two prices referred to as.
Edit: As an example in response to comment: Imagine you saw a nice oil painting and you thought to yourself "that's beautiful. I'll buy that for my sitting room and if I ever got bored of it in years to come then I'll just sell it..." You may offer the painter price A. But now imagine the seller says "if you buy this painting you are not allowed to sell it." (also imagine the painter had some mechanism to enforce this rule - this is just a thought experiment after all). Now the price you would be willing to pay might be B - presumably somewhat lower than A.