If you want to improve the look of your front counter, then this idea is sometimes done and it is quick.
Replace when its time the old computer screen like this one.
and put in a coloured monitor like this.
It takes less space as the printer as you can see is under the screen.
This will enhance your shop.
If you go this path, what you need to consider is that you are not looking to create the most beautiful shop in the street, but one that has coherence so pick a colour that matches what you have so it can match your company colours.
If you have not thought much about colour or you want to review what you have, click here for a quick introduction on this subject.