packages ports and portupgrade

[Brian]

Is there a difference in allocation of package building resources 
between v5 and v6 stable versions?

I use both a v5 and v6 stable box.  The v6 box is paid attention to a 
lot more closely, the v5 box is a once in awhile test machine.  I 
noticed yesterday that portupgrade -aP on the v5 box led to most of the 
updates happening via package, whereas the v6 box is building most of 
them via ports.

Brian