Garrett is spoiling us with a waterproof machine. This means it's dust proof too. No more environmental covers either. Keep your plastic bags in the kitchen drawer! If you bring it home dirty just hose it off! You don't have to put it in the water to reap the benefits. All those features and under $600! Now the other manufactures will have to start over on their new machines. I mean ABC manufacturer comes out with a new machine. First question will be. Is it waterproof?
No more questions of why we need multiple machines!
I would never ask why someone needs 10 purses! 
I don't think I would go as far as hitting it with a garden hose, but I see your point. Maybe just a vigorous cleaning with a washcloth. I'll let you try it first..lol.