There is simply a sense of pride in doing a better job of meeting customers' needs. Besides, there's plenty to enjoy about this line of work. It's not faddish, it's not fast-changing. But there is an element of fashion about it. And remember that for most people, their house is the biggest personal investment they will ever make.
People take a lot of pride in how they furnish their homes.
And from my standpoint, it's a lot more fun selling the decorative items than the sheetrock.