>>>> So naturally you notice a peak for rendering with superfly right away if it is raising the consumption by 3 to 8 instead of 5 for the normal day's. making you realize what costs are involved using superfly. 

If you take the time to learn SuperFly and update materials for older content, you can cut your render time down substantially by rendering with OptiX instead of CPU as you did, since your cards are capable of using it.  Yes, it takes time to learn something new. It took me 3 months to get the hang of DS and to create content for it. But I worked through it to learn. Now I can create content for both. But rendering in DS now takes ages when compared to Poser, and also makes my fans run continusualy during rendering, so there is that. 8-)