RE: Losing my desire to hunt
I think what you are going through is a natural progression as a hunter. I think after you have killed a lot of animals, the excitment wears off a little.
Myself, I have found that I really enjoy taking different people, especially kids. This year, I took my cousing moose hunting (his first time), and I never really even had the intention of shooting a moose, but I sure enjoyed watching him kill his. Me, I enjoyed planning the hunt, getting the gear ready, tending camp, handling the raft, and butchering a moose under the Northern Lights with a bunch of wolves howling around you until the wee hours of the morning has to count for something.
I have also found that training the dogs is a lot of fun and challenging as well.