a few comments on this thread
I actually found this thread really interesting since I'm a big fan of canisters. I think that Electrolux was a good choice, and you can pair the plastic and metal models with other power nozzles since the hose end and electrical connector are standard. Most of the power nozzles that are designed for central vacuums have a cord on the nozzle or on the lower wand. Just connect the cord to the connector on the hose and you're good to go, the only thing you may need is a short power nozzle extension cord and those can be ordered pretty easily. I actually have two plastic models, one uses the two stage motor and the other one is the current classic which uses the one stage motor. I prefer the two stage myself, some of this is personal preference, I just think it sounds better, the tone of the one stage motor just doesn't sound as good. Also, two stage motors are more efficient since the motor does not turn as fast, so I'm not sure why Aerus decided to switch motors, that was a case of fixing something that was not broken.
Mike
