I went with 25 for a couple of reasons. Partially to make it even with the science process, and partially for other reasons. Resale value is a function of hammer cost, IIRC, so it drops automatically with hammer costs. Something I should check on however. All that said, I agree that that exploit should be removed. I'm more of the opinion that the sell-back profits should be reduced, however, rather than buffing the process much more; Several of us have told the devs that the profits should be nerfed a bit, so we'll see. Until I hear an answer on that one way or the other, I won't make the change. I only have to buy a bit of beer. And provide use of my hookah (for shisha, nothing illegal people ) of course. Others are bringing some real liquor.