Im playing devil's advocate but also my experience.
Yes but you are missing the point. It doesn't matter whether the power nozzle is better than the other, you're forgetting the cylinder vacuum behind it PLUS the weight of the hose, plus the weight of the tubes regardless of whether SEBO fit the plastic sheath and metal ones for the PN head K3 or D4. Don't forget there's also the added weight the permanent rod that runs down the back.
You can compare each floor head all you like, but it doesn't hold much standing if you don't consider the vacuum that comes WITH IT.
Also, in my purchasing experience, Miele used to honour the 10 year guarantee with a few of their models back in the 1990s. The PN you speak of with the C3 from Miele could well come with a 10 year warranty "free" without extra payment. And even if you get the £35/£50 option to pay for that option alone, I'd still consider that if I was buying that model alone.
The "cheaper" dust bags and filters can only truly be considered if comparing only the D4 to the larger Miele GN bagged models. Otherwise the K series with its 3 litres only in a box of 7 to 10 could well balance out "in time" when comparing the larger known 4.5 litre/5 litre dust capacity of the bigger bags that Miele supply.
And then there's the problem I and quite a few other members online have had with the SEBO - the pig tail connectors. They are NOT honoured under the 5 year warranty. I gave up after going through 3 of the connectors from handle to the tubes.
