Cheap price for branded micro USB stick,
Large capacity, small and unobtrusive where space is an important factor, it's not the smallest but sometimes that's an advantage where smaller drives are really difficult to remove.
Only USB2 so probably not for you speed freaks out there,
Ideal if like me you tend to copy files onto them and forget about them, consider faster drives if you change files often.
Don't forget tcb or quidco.