In the working world cost is determined by an agreed upon value we place on commodities traded based on the effort required to make them. When we take things to the outdoors however there is a paradigm shift and our currency becomes weight or, rather, lack of weight. The less weight we carry the more value we can withdraw from the bank of nature over time, or so those of us that join these forums believe. Some things such as a sleep system or shelter are so intrinsically connected to being able to enjoy the outdoors over time we can tare their weights to an agreed upon maximum (I see 2lb max for each of the big three often mentioned). However at a certain point (different for each individual and situation), the stuff we carry rapidly increases in value(water treatment/first aid) But just as rapidly as the weight cost increases the value quickly plateaus and then begins to drop (not just for the items added after the plateau but it retroactively affects the value of previously added items. (Carrying two tents into sierras will negate the value of your 1 oz stove)
In a more extreme example if you are going sul and have everything under 5lbs and choose to add 60 lbs of rocks to your backpack not only does your outdoor experience lose value but it actually becomes an unpleasant experience and the items that previously allowed you to enjoy the outdoors now only prolong your misery.
Where a basic value is first included (sleep/shelter/food/water) then grows (light/map/fire) peaks and then rapidly drops (heavy boots/hatchets/)
And increases.
Things like outdoor skills and techniques carry a 0 weight cost and so are the best value in terms of this idea and highly recommended for increasing the value of your outdoor life.
With the combined efforts of those here I want to think we could find the coefficient of weight/value and make our gear choices less frustrating and justify those we have made, which was the birth of this concept for me (do I get the Lunar Duo or add 12 oz and get a big sky as a double wall and avoid the sil misting etc.)
So what is the cost of convenience?
I can see those theraband tensioners being pretty nice if they will keep a silnylon tarp/tent taught throughout the night and reduce wind shock. I myself always find a way to bring a heavier kitchen then most I see here so that I can fry eggs in the morning.
Just throwing it out there but say you rate every trip from 1-100 and each ounce helped contribute to or diminish the score I think averages would present themselves to help us make a comprehensive and fair maximum weight requirement for all things that go backpacking. And make it easier to decide if certain items should make it into our packs.
From things like:
20 degree bag….32 oz (0 points)
20 degree bag….22 oz (10 points)
20 degree bag….42 oz (-10 points)
To:
Camera 5 oz….(-5 points)
Photos (1-10 points (depending on the pictures))
Sunglasses 1 oz (1-10 points depending on conditions)
ya see? Everything with + points should come along and everything with minus points should be removed. The cost of all nonessential items is negative until the essential items are accounted for. Once every essential item required item is included and 100 points is reached every additional point should be treated negatively) I think with enough data a complete and comprehensive directory could be made that would set in place appropriate weights and what items to bring if you plug in the variable such as duration of trip, experience, forecast, and altitudes encountered. Which would reduce the cost both financially/emotionally/ and mentally of this wicked gear game. Who’s coming with me?
ps. should i get the lunar duo or the evolution 2p ;)

