We Otterbox 'em up.
My sister is 16 with autism and holds her iPad like a boom box. Dropped it quite a few times but the Otterbox keeps it in great condition.
Here's your 5,000.00+ alternative.
http://www.atlclibrary.org/categories.php?id=3
And the iPad does it better.
In the link Dave posted, we use the first app they list.
One client started using it to ask for things.
The other started stringing together sentences that were dramatically correct. It was incredible to see the parents tear up when that happened.