XP still wants a floppy disk for drivers needed during install, it was developed in another time, the world has moved on.
Microsoft fixed this in XP based Windows Embedded POSReady 2009. They used WinPE to give it a graphical setup program like Vista/7/8 and allow storage drivers to be installed from CD/USB. Whats sad is that they could have ditched that text based setup program (that dates back to NT 3.1) way back in 2001 for WinPE.
The L-Prize bulbs were nice, but its obvious the market balked at the price.