When you're marketing, it's important to get people to buy from you today. Without sales today, you better have money to keep you living until you finally get sales.
If you don't have enough money to hold you until you get those sales tomorrow, then you're in big trouble. You're probably not going to be in business very long, or you'll have a lot of debt.
However, it's always a good idea to plan for tomorrow, because if you're always reacting to things today, you're always going to have to work hard just to keep surviving.
Working for tomorrow's sales is called branding.
Branding is the overall perception that your target audience gets when they think of your company. (Note: I stole this definition from Wendy Maynard's video, but it's a really good definition.)
Catch a key word in there...PERCEPTION.