We were lucky enough to receive a towel animal at POR last Nov. It was a cute little puppy and I took it home. While I probably wouldn't take a bunch of them, I don't see a problem with taking one and in the big scheme of things I really don't think Disney cares that much one way or the other. If it was a big expense for Disney or they thought it was a problem, they'd have housekeeping stop making them.
As to why anyone would want to take them home? Because they're cute and they make a nice little souvinier of your trip. Ours is still intact (and clean) since Nov. I keep it on a shelf in my bathroom. Every morning when I'm getting ready for work, it catches my eye and I'm reminded of my trip. It makes me smile. People take them home because it's a little piece of Disney magic and Disney probably knows that.
As to why anyone would want to take them home? Because they're cute and they make a nice little souvinier of your trip. Ours is still intact (and clean) since Nov. I keep it on a shelf in my bathroom. Every morning when I'm getting ready for work, it catches my eye and I'm reminded of my trip. It makes me smile. People take them home because it's a little piece of Disney magic and Disney probably knows that.