The value of favoring something like
print $debug->table( ORDEROBJECT => $order ) if $DEBUG{ORDER};
over
print $debug->table( ORDEROBJECT => $order ); #//
is that there may be times when you get backed into debugging in a production environment.
If you're hosting your production environment (and have direct access to the database servers), it may be practical to replicate an environment that's failing. But if you're shipping a system that customers will be running within their own firewall, you may need to fall back on enabling some level of debug code in situ. Having the ability to turn on debug code remotely has saved my projects' butts many times over the past decade, and saved us from spending megabucks on last-minute airline tickets.
