Writing insturments - why not?

[corinthum]

No: HPFGUIDX 76784

Owlery2003 wondered:

I wonder why it is that the WW is so big on quills and bottles of ink,
though? Leaving aside the "magic" aspects of certain inks, quills, and
etc., really you might think the muggle borns would have become rather
used to conventional modern writing instruments like pencils and pens. 

Dan replied:

...it's a part of wizard culture, a part of the Good Old Days that
they're not willing to let go of. Surely pens and pencils are much
faster and more efficient (no ink dipping, they don't break as easily,
etc)

And Buttercup agreed:

This is one area where muggles are
more efficient, in writing instruments. 

Now me:

Actually, I disagree on the efficiency issue.  We can probably assume
that Harry had never used a quill, fountain pen, calligraphy pen, or
anything similar before he came to Hogwarts; I simply can't see the
Dursleys splurging on something like that.  However, he begins using
his quills without problem from day one.  As far as I remember, he's
never complained about running out of ink, messing up a paper with
blots of ink, etc.  This makes me think that the quills used in the
wizarding world are magically enhanced, for example, they hold more
ink (enough for an entire paper rather than a few words), keep ink
flowing evenly even if the user isn't careful, etc.  It would also
explain why everyone buys their quills rather than making their own.

If this is true, then the wizarding world never switched to Bic
ballpoints because they didn't need to.  Why fix something that isn't
broken?

-Corinth