Some of the reasons why I went with a tent (TT Notch specifically)...
- What is the difference between say a TT Moment and a tarp? It's a tarp and a groundcloth connected with some bug netting. Why deal with bugs and bivys when you can just have a tent that protects against both?
- Fiddle factor setting up a tarp, bivy, bug netting maybe, adjust it, customize the pitch versus set up the tent the same way each time
- Bugs and creepy crawlies (ants, roaches, salamanders, centipedes, mosquitos, ticks) I have woken up with a roach crawling on my face before and I just don't like it. I am in the SE but I'm sure ya'll have your various creepy crawlies in Utah.
- Bivy's can have their own condensation issues as can any tarp that comes down close to the ground.
Also with the three new TT designs you can use it and try it out as a tarp. If you end up eventually wanting just a tarp you can EASILY sell your Stratospire for close to what you paid for it.
What would be the weight difference between the Stratospire II versus a SilNylon Tarp, groundcloth, and a bivy? Can't be much if any.