Whenever I get the urge to write something like that, I ask myself: "Am I in the target market for this?"
A product built to these tolerances is not one that a rational person (even a competent one, with experience fixing computers) should want to crack open. Make the professionals worry about getting in and out of it, and enjoy the fact that they'll be liable for anything they break in the process.
"Not user serviceable by design" != "disposable by design." You're not wandering across a post-apocalyptic desert wasteland with this thing; take it to a f'ing Apple Store and grab a coffee while the infrastructure wrenches on it.