That model seen at the link is for notebooks mainly. For a reliable corded model the MS opticals are great. The rubber ball is no longer a problem since the plastic optical one is simply dropped out and wiped with a handkerchief or any other soft cloth and simply put back in for easy scrolling.
Then there are some trackball types to consider where you don't even need a mouse pad. For the better more reliable models you will end up pating a little more then planned but they are usually more durable as well.