Ok, here is the first part of the results:
(This now has the _all files included)

---

In Extras; bad news almost EVERYTHING is not optified.
If you installed all 57 programs/libraries in "Extras" you would be using 31.313,619 bytes in /usr
and 10,136,698 bytes in /opt (7 packages)

The biggest offenders are:
Python = 20,149,809
omweather = 5,047,291
gstreamer = 1,440,853
libvorbis = 1,196,245
opensshclient = 1,020,136
libthedora = 607,363

----
In Extras-Testing
Installing all 282 applications/libraries would take:
/USR = 115,282,679
/OPT = 127,355,017 (51 Packages)

The biggest offenders:
Python = 27,242,712
libpurple = 21,004,743
libqt4 = 13,641,166
tuxpaint = 6,089,310
gstreamer = 3,275,546
omweather (Data) = 2,911,812
libgtkmm - 2,170,263
maelstrom = 1,617,488
libpoppler = 1,597,363
tomotko = 1,510,179
wget = 1,500,396
belltower = 1,400,072
openssh = 1,374,512

A couple notes:
- The omweather app is optified, but the data is not.
- The vast majority of all the libraries are NOT optified.
- Their are a some packages like supertux that is partially optified; it has the vast majority in /opt, but like 400k is still in /usr.

----

Nathan
P.S. Attached is the raw data; w/ duplicated programs removed (i.e. I removed all the older versions of the same name)