When Tiffany & Co. used an old MS Dos computer system (they only switched away from this system about 5 years ago), the salespeople had to be really smart with the computer. Moreover, they had to remember codes. You had to punch in codes and commands. Furthermore, the codes were so numerous and difficult to remember. Engagement rings from 0.01 carat weight to 2.99 carats had one code. And anything 3.00 and above had a different department code. Those employees at Tiffany & Co. had to have pretty good memory just to learn to use the computer system! And this User Interface and User Experience was really hard to use - it was still "Enter Line Number" and "Y/N?" commands. With that, I'd say some of the sales people at Tiffany & Co. were very sharp cookies indeed. But then the average customer at Tiffany & Co. is a one-time transactional customer. Moreover, Tiffany doesn't have a large product line for men. So men are bored in their stores and thus a long-term relationship is formed. Whereas your AD has nice watches for men and nice jewelry for women, so both halves are entertained and a relationship with both spouses are formed. Thus, the sales employees at T&Co. are probably smarter than they need to be - considering the clientele is mostly not repeat clientele.