I find spreadsheets invaluable and would never ditch them! There are so many, many uses for the gear spreadsheet in addition to pack weight!
I think that the OP's problem is that he's confusing "lighter" with "better," or at least thinks that those of us who use spreadsheets are doing so. Actually, what is really wanted is the lightest pack for the specific circumstances of the individual person and the individual trip. It also helps if this combination doesn't overwhelm the individual's bank account! I believe that nearly all of us who use spreadsheets realize that the ability to crunch numbers easily and quickly (the main function of a computer spreadsheet) is a convenient tool, not an end in itself. The spreadsheet is merely a convenient starting point to allow your brain to focus on items more important than number-crunching!
Of course my original gear spreadsheet was my primary tool to cut my gear weight in half, from a 40-lb. weekend pack down to 20. Since then, I've cut my base weight from 15 lbs. to 12. (Yes, that was a lot harder than the original 50% cut!) Since I do need some creature comforts (luxuries to others) to be pain-free in my old age, I probably won't get much lower!
The spreadsheet allows me to analyze my gear in terms of systems, which, in addition to reducing the likelihood of duplicate items, greatly helps me to organize my packing for a specific trip.
The spreadsheet allows me to analyze each piece of my gear periodically to see if I can eliminate (or add) specific items, or find something that would work better for me.
The spreadsheet lets me compare my list to other gear lists yearly to see if I'm missing an obvious (to others, not me) weight savings or, on the other side, a small item that would enhance my comfort. It's easy to move stuff around to put my list in exactly the same format as the list I'm comparing to.
The spreadsheet makes it really easy to do what-if scenarios to test the effect (both weight and dollar amount) of different gear combinations (both weight and dollar amount). This is especially important when a new and tempting gear item comes on the market! I would probably have spent twice as much of my retirement savings without this feature, and probably would not have a significantly lighter pack. With a spreadsheet, just set up the total weight/cost in a window at the bottom so the total is always visible while you're playing with individual items (like that $500 cuben fiber tent that ends up weighing only 2 ounces less than your current tent).
Once the numbers are crunched, I look at the items on my spreadsheet in terms of subjective items: need, comfort, experience, destination, etc. No, these items cannot be quantified, but I make notes of these on my spreadsheet.
Finally, an extremely important function of my gear list spreadsheet and of keeping it current is that I can quickly print a checklist before each trip. I check off each item as I pack. There's no danger of my finding out several days from the trailhead that I had a "senior moment" while packing! (I call them "senior moments" now, but I had them back in my 20's, too--it's far safer to have everything written down!)