Lots of focus here on cost per hour. Not much on the effectiveness of the training:
1) The soft teetering head on a Jet Ranger is totally different than the responsive H72, Black Hawk and Apache. I spent a good part of my career trying to break the sloppy stick habits of pilots who thing a cyclic can be wiggled without moving the helicopter, who then blame a nimble helicopter for being "unstable". The H-72 is much more instructive in this regard, and closer to creating the stick habits for the Army fleet.
2) Twin engine housekeeping and diagnostics. Managing and diagnosing power failures is the #1 cause of acccidents (after CFIT) and absolutely unteachable in a single engine helo.
3) The real cost is the loss of $25 million worth of Apache or Hawk for an accident. Save one pilot error accident, pay for flight school for a few years.