Over time, your floor of your shower will eventually need to be replaced. This will really depend on the quality of the floor to begin with since many floors can last for decades. There are advantages and disadvantages to different floor materials. For example, tile floor can look really nice and can be easy to repair. If you have a tile crack, all you need to do is replace that tile. For something that comes in one piece like a neo angle shower base, depending on the severity, you may need to replace the whole thing. Some are more expensive than others as well. You will also want to go based on the shower walls to give you bathroom a more consistent look in order to make it more attractive.