I'll chime in with another personal comment.

One of the apparent features of HTTrack is it's
flexibility (akin to Sendmail).  That makes it
appealing to an unpredictable audience that will
certainly use your tools in unkown ways.

In my case, I am trying to use HTTrack to generate a
static copy of my dynamic web-server.  So far, it's
very promising and appears to resolve all the issues
wget (and tools like it) can't handle.

I would agree that some better "canned" examples as
command line options would be cool and would even
improve the understanding of complex querys/options. 
For example: if you created a --picpluck option/alias,
and document what the alias is equal to in terms of
normal options...it's a win for everybody.

In fact, being able to define (alias) command-line
options in the .httrackrc would be awesome!  You could
then build a default httrackrc full of examples.

I'm just rambling now... hope something useful came of
this ;-)