Or is it purely personal preference?

It is. I start using named arguments when a sub has more than two.

If does require that your sub names are logical, though. 

readfile('foo.txt');

[download]
is already self-documenting, while 
readfile( file => 'foo.txt' );

[download]
is redundant. 

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ByZWNvZ25pc2UgQmFzZTY0IHdoZW4
geW91IHNlZSBpdD8gIC0tIEp1ZXJk

In reply to Re: Accessing Subroutine Arguments by Juerd
in thread Accessing Subroutine Arguments by vek

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