Gold and silver is cheaper when it saves you iron, copper, and rubber. And when you talk about the energy cost, could you please remind me of the time that you needed more that a geothermal or two and a handful of solar panels to power your workshop? (not your mass fab) vanilla IC2 is in sore need of more energy consuming machines. as far as time goes, that encourages building larger assembly lines with parallelism. If you are really impatient you can always add overclockers, heatvents, or heating coils to improve speed and/or efficiency. any effective gregtech setup will use several machines, heck, the multiblocks are built around it. It does happen to make keeping up with a quarry a non-trivial matter, which it should be. I will also note that when I said free, I was referring to processes that you would be doing anyway in order to gain other important resources. That makes them free. Finally, the cheaper costs for things does actually matter because, as I said before, Gregtech extends the tech tree a substantial amount. In vanilla IC2 you get creative mode after you start up your mass fab. at that point, you are correct that resources do not really matter. however, in gregtech, resoure efficiency is a very important consideration throughout the game. Anyway, if you don't care about how much stuff costs, then why are you complaining about the expensive recipes?