> * Cases shall be easy to open.
Actually, any case is easy to open, if you have the right tools. Closing it
afterwards might be somewhat harder, but JB Weld is cheap.
On a more serious note, sometimes there are valid reasons for having a
totally sealed case. In some cases it simply comes down to cost, most folks
would rather get a unit that cannot be serviced than pay twice as much for
one that can be serviced. But there can also be much more subtle issues,
like the quality of an RF connection inside a cell phone. A bad connection
may let the unit appear to work, and yet generate enough radiation to
violate standards (or even be hazardous to the user).
-- Randall
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