1968 Quarter = One type of reverse design
2009 Quarters = Six types of reverse designs
This is a hobby in which even a minor change to a coin's design can
make it a different type. Early 1909 Cents with the V.D.B. initials
are considered to be the "V.D.B." type, even though the reverse
design is otherwise identical to all Cents made through 1958.
The Wartime Nickel's only difference in design (compared to the
standard 1938-2003
Jefferson nickel) is their enlarged and relocated
mintmarks. Of course, their change in composition also makes them a
different type.
The 1913
Buffalo nickels and 1917
Standing Liberty quarters at least
have some design alterations between their types, not just the
removal or relocation of small letters (as on the previous examples,
and the mintmarks of the 1917 Walking Liberty Half-Dollars).
Since even minor alterations constitute a type, there's no argument
that six
completely different reverses are six types.
The 1968 vs. 2009 mintage is thus an 'oranges vs. apples' debate.
However, the BU 1968 'oranges' were not saved in anywhere near
the quantities that the six varieties of BU 2009 'apples' will be.

This is why
cladking and others prize high-grade
early Clad coins. Almost no one saved them in BU grades. You'd be
more likely to find a BU 1964 Quarter in a roll than a
BU 1965 Quarter, no joke! There are lots of '65's still
circulating in Denver, but they're all down to G-VG grade.
A 1968 Clad Quarter will remain much rarer in BU grade than any one
of the six types of 2009's in BU grade. It may even end up that 2009
Quarters will be rarer in circulated grades than in BU grades (much
like the 1950-D Nickel)!
Quote:
morgans dad "I would like to see the designs used on Paper money"

Back in the Large Note days, the U.S. produced stunning notes like
the Educational Series $1 and the Indian Chief $5.

And
how much has printing technology improved since then?