Why is the woman annoyed?

WA That’s SO annoying! I just bought this expensive printer, but it doesn’t come with the USB cable I need to connect it to my computer. Now I have to go BACK to the computer store just to get the cable.
MB I know, why do they do that? They should just include the cable with the printer.
WA That’s what I think. I can’t believe I have to make an extra trip just to get a cable.
MB Well, if you’re going back to the store anyway, you might want to buy some ink cartridges, too. The ones that come with the printer are so-called starter cartridges— they’re not regular full-size cartridges, and they’ll run out after you print a few dozen pages.