I dont know that I agree with you their sebofan. I have only seen a handfull of canisters that store hoses onboard. Only dyson did it efficiently but they no longer offer these models. AEG tried but it was more work to try and get the hose wrapped than anything else.
I stand corrected but other than dyson's dc08,11,20,21,22,23 models and the aeg I have not seen a Modern (last 10 years ) sledge cylinder that stores its hose, wand , floor tool onboard without the machine in park position meaning it takes up as much space as a large upright.
The dc23 was big seller because of this feature here in SA