hi darko

i think it depends on the film, the format and the photographer.

some films need dead on exposures because, well, to be honest ...
some large format films are expensive ( $6-10+ / SHEET <not including processing> )
and folks using the expensive stuff would rather know they got a good image on the film
above all else because unless you have jack's magical beans or you are very wealthy you can run out of $$ shooting LF ...
that said, i only meter for paying jobs, but it is mainly to back up my internal/sunny11 meter.
if it isn't a paying job i don't care if i have a perfectly metered exposure because my materials ( old expired film, hand coated emulsions paper negatives )
processing ( coffee based developers ) + printing methods are kind of ... "different" than most peoples' ....
while i don't mind a 20 second exposure with a 300watt flood lamp on RC paper to make a print ... a lot of people would ...

exposures are relatively inexpensive with smaller formats, but the emulsions are the same so in the end it matters just as much depending on who you are ( or aren't ).

john