Earlier quoted context omitted.
The desk in my son's room cost $1000. It's customized to his interests/hobbies. If it didn't have all the bells and whistles, it would have been <$50 (a few 2x4s and a spare chunk of wood I used for the top).
You're comparing apples and oranges, if you're building a desk out of some 2x4s and a spare chunk of wood, and comparing that to $1000 products. Undoubtedly the manufactured products are lighter, more robust, and made from better materials. That isn't to say that these desks are more suitable. One could build a desk from even better materials than the $1000 desk; maple, walnut, mahogany, stainless steel, brass, whate…
Compared to commercial, what he's got is:
1. Lighter (2x4s are light)
2. More robust (2x4s are tough)
3. Looks better (An off-the-shelf product would look better in a showroom, but this one fits his room exactly, and fits his equipment exactly; that makes a much bigger difference).
I'll mention: That's true for most of the crude furniture I make. I have fine woodworking, and I have not-so-fine woodworking. The fine woodworking pieces tend to be generic (e.g. a bookcase). The not-so-fine-ones tend to be special-purpose. Right now, I have custom stuff built up for remote work, for example, with cameras/cables/etc. properly routed.