Design a logo in 72 hours?

After finishing the book " London Pop-up" by Hei Shing Chan, I start reading another book called "What is Graphic Design?" Just find one interesting website introduced in the book.

http://www.72-hour-logo-design.com/

This website offers a logo designed for you within 72 hours. The logos designed are good and the price is reasonable.

Just amazed that we have a convinent store providing service of designing logos~:D

I'm not making advertisement XD but only think it is interesting.