The biggest benefit to installing a bidet in your bathroom is cleanliness. Consider the bidet as a mini-shower for after you use the toilet as well as any time in between that you might need freshening up. However, in North America, the bidet has a sordid mystique, probably because the main focus of the fixture is to clean the genital region.
Adding a bidet in your home is a great tool for personal hygiene. If you have a bidet, you will be able to save more because you will no longer have to buy rolls and rolls of tissue paper and using one is also more nature-friendly.