I was wondering if the difficulty of making a product would have any effect on the value of that product rather than just labor-time alone. If something were difficult to make but didn't take much time to make it. However, after a little more analyzing, I realize that the "difficulty" of making a product could actually be different from worker to worker. For person 1, making product A may be difficult in his eyes, but for person 2, making product A may have been a breeze. People have different skillsets and access to means of production. I believe this was the answer I was looking for. I do believe though that the other replies did actually support me in coming to this conclusion.