Sebo makes for Windsor in the US: Versamatic- not a current Sebo machine here, Versamatic Plus- the 370 heavy duty upright, Sensor S, the G series, Sensor- the Automatic X series, and the Flexamatic which is the Felix. This is what Windsor in the US currently sells that is Sebo made. I wouldn't say either is much cheaper, If you're a big commercial account you can get the Windsors cheaper, but you also have to buy in bulk to do that. Individually it just depends on who you know... For the average customer a Sebo branded machine is going to be much easier to find and buy.