It's not just time, it's also effort and other non obvious things like supporting a real human being

> I would place FAR more value on a comfortable functional mass-assembled chair than some wobbly piece of crap some guy spent two weeks cobbling together in his garage

If it's wobbly then sure, but what if it was made by someone with a modicum of expertise to make it not wobbly.

then again, i don't mind a good wobble, it's a fidget opportunity and i like to fidget