So actually desiring to become God is desiring to be a demon (I like the evocation), or as some have expressed it, a dog. Still, he was given the opportunity to express his demonic nature and live it out engaging God himself. 

A desire is also the other flip side of what it represents beyond, a cost with a responsibility tax. 

So a desire, the fulfillment of a desire, and the cost of one are just different sides of the same element, as they stretch over time.

Good point, btw.