Logan, thanks for your posts. I think they will be helpful for the OP in pointing out the existence of a learning curve regarding hammocks as well as the requirement to revamp some gear.
Regarding the learning curve, I have been going to Hammock Forums and have been reading Derek Hansen's book called The Ultimate Hang. So far for me, the words I would use to describe the learning curve would not be "steep", but rather "fun", or "enjoyable". But the adjective used to describe the learning curve depends on the perception of the one doing the learning, I suppose.
Also, I don't plan on becoming exclusively a "hanger". I'll take my tent when I feel like it, and take the hammock when I feel like it. Who knows, I may even discover that I can't even sleep in a hammock and end up selling…I'd be ok with that…learning about them has been a lot of fun.
As a guy in my early 50's with back and knee injuries suffered during my athletic days, walking upright into the tarp and sitting in the hammock to remove shoes was a revelation. And given the OP's criteria for a shelter, I thought I should bring up the possibility of a hammock/tarp setup.
Your thoughts regarding the existence of a learning curve and the necessity to revamp equipment, once again, are indeed very valid points.