There should be maintenance done at some point every day, if you want to keep the bamboo looking its best.
Be sure to sweep the floor with a soft cloth broom at least once a day. If possible, once in the morning and once in the evening, or after periods of high traffic is even better. If something is spilled on the floor, take care of it immediately. Dust and dirt left on the floor for long periods of time will get pushed around as people walk through the room, causing it to create minute scratches in the finish. Over time, these scratches will diminish the appearance of the floor, causing it to show its age.