You get to explain things to people who don't want to learn or don't know how a computer works. If you go into a computer store knowing exactly what you want, or even have a basic idea, you're not going to have to ask an employee a question. This means you will get people who don't know what they want, and you get to figure it out for them. You will also get people who just don't know where something is located. If you go into a store like Fry's, you can see there are some people who might as well work at a grocery store, they don't know much about computers themselves and they just tell people where things are located. Then you have the people who know what they're talking about who deal with all the customers who want to buy their grandson a GHz of RAM.