GDM memory use

[Gordon Messmer]

$ a=0; ps axfu | grep ^gdm| awk '{print $6}' | \
   (while read x ; do a=$(( a + x )) ; done ; echo $a )
400760

Does anyone else notice that gdm's session takes up 300-400MB of RAM?  I 
typically defend GNOME, but this is kind of ridiculous.