Yes, they're sold with XP Delta Edition, which rolls up all the updates that exist into one package and adds some bells and whistles.

All my XP product listings have a disclaimer that mentions XP is unsupported and shouldn't be used for everyday computing; I have on occasion had to steer away customers looking for a general-purpose machine to something else. The typical customer who does buy an XP machine is either doing retrogaming, running legacy hardware (industrial control systems and medical equipment are common), or has some other XP-specific need.