I'm still scratching my head how we went from abundant cheap energy "back in the day", and not concerned about running costs of things like Mark Levinson amps, or light bulbs(!), to being terrified of turning any appliances on these days... maybe I just wasn't paying attention back then *shrug*? And that's terrified AFTER converting the house to all low energy appliances. Something has gone very badly awry.
The other issue with the 33H was the H for HEAT. Also had to run aircon in the summer to combat the added heat from these units, adding to running expense. Nice in the colder months though!