Always a treat to see the innerworkings of a business that is extremely successful and one that I have patronized. And for the low price of $10, I was willing to take a break from the casinos and Vegas insanity and go on a tour.
The tour guide Letha was excellent and knowledgeable about the entirety of Zappos and guided us through the campus with ease. I won't spoil the tour by mentioning specific details except that there are only two walled in offices (legal and the Goal coach (or whatever they are called). Even the CEO Tony Hsieh has a desk right out in the open. We even saw him walking around and a few in our group half swooned. :)
You will do some walking (duh) so wear comfy shoes and bring your questions. Parking is free, and shaded (bonus!) and if you need to store something instead of carrying it, there are some lockers by the bathrooms near the front desk.
My wife and I were each given a $15 gift card for Zappos so the $20 I paid for the tour was more than covered by the company,. One of the many ways they go over and above and deliver the Wow through service.