If you're arguing against standardization in parts - that's an uphill battle - sure once we have replicators it doesn't matter, but that's futurism.
I'm actively fighting for open source hardware and standards, but a big part of this is finding off the shelf components - look at Http://octopart.com for a good example of what this looks like.
"If you're arguing against standardization in parts"
Oh, very much not.
I'm more commenting on unnecessary overspecialisation instead.
Unnecessary for non-commercial applications anyway - I understand why Apple chooses to put difficult-to-use fasteners in their products, if for no other reason than to minimise fraudulent warrant claims, but there's a whole different set of motivations if designers are going to use the equivalent of "open source" for digitally reproducible home-fab ready "object" files.
I'm actively fighting for open source hardware and standards, but a big part of this is finding off the shelf components - look at Http://octopart.com for a good example of what this looks like.