Where does it say you have to make a separate appointment to buy one? Just go to store.apple.com and order it.
Or you can use the process below, which MR has chosen not to report for some reason (even though they usually report every other rumor that comes from 9to5Mac):
http://9to5mac.com/2015/03/29/apple...aled-magical-tables-demo-loops-sales-process/
We know that you have to make an appointment to try one on. According to the article you need to make a reservation to buy one. Thus, two appointments, unlike when I bought my iPhone, iPad, or Mac and was able to go into the store try it, see which one fits my personal tastes then buy it on the spot if they had one in stock. I know I can order online I am just saying these are barriers they are erecting between a product and a potential consumer.