They know just how important custom PCBs are to hobbyists, students, and even professional engineers! BatchPCB has some requirements, and some lead times. But if you need only 1 board, why are other companies making you pay for 5? BatchPCB is a small company trying to make it easier (and cheaper!) for everyone to enjoy professional quality PCBs for prototyping!
Simply create your PCB layout on any software that creates gerber files, upload your file, wait for confimation, and then recieve your PCB in the mail, that simple! It's cheap, easy, and image the excitment when you get your professionally made PCB in the mail!