A few years ago CASA was espousing a policy to upgrade the ageing GA fleet and replace old aircraft with new ones, now they are encouraging weekend mercenaries to use old clapped out cessnas to undercut the AOC holders with more modern, safer, larger aircraft.
If you had a small fleet of new Airvans, or even a single Airvan, you can't use this option, but old mate without even a current class one can cross hire an old Cherokee 6 or flogged out 15,000 hr 50 year old 206, and set up next door and undercut you while giving you the CASA approved finger.
Class act CASA, not!
HD