Either way infinite dives into the clockworks really means that you can get as much Crowns as you need over time to pay for the energy you need to alchemize something.
OOO's didn't make it harder to alchemize stuff, they just made it take longer. This is a good way to make players get more active in the clockworks and actually play the "adventure" portion of the game.
As for the Trade market, i'm thinking that overtime Energy is going to have a small chance of going downhill in price and more uphill due to the fact that crowns are now going to be much easier to come by due to the removal of elevator costs.
Your also forgetting that when you heat something in the "Forge" you have a chance of skipping a level as well instead of having to heat it all the way, so you might want to figure that into your equations.
Cost in energy of alchemizing an item from 2* through complete 5*:
2*->3* / 200 energy for alchemy
3*->4* / 400 energy for alchemy, 115 for fire crystals (33 3* fire crystals @ 3.5 energy/crystal)
4*->5* / 800 energy for alchemy, 2,184 for fire crystals (312 4* fire crystals @ 7 energy/crystal)
5*->max / 6,342 for fire crystals (453 5* fire crystals @ 14 energy/crystal)
Total: 10,041 energy
Total for buying a vanilla 5* from depot and heating: 9,842 energy
On one hand, I guess that's fairly balanced in the sense that you aren't getting much of an advantage buying 5* gear from the depot vs. alchemizing your own (minus, of course, the enormous amount of time saved on grinding), but on the other hand that means you are looking at the equivalent of ~$25 in energy alone--not including crowns and mats if you are alchemizing--for each piece of completed 5* gear at the higher 20k energy/$50 rate.
[EDIT: And this isn't even beginning to look at what the relative cost for f2p players who are trading crowns for energy might be, since we can't know for sure how the exchange rate will work out post-patch.]