People invest a lot of money in their tablets, but a new study by SquareTrade shows that iPad 2 tablet devices are more likely to be broken by users than the iPad 1. People who own these iPads should be sure to invest in iPad 2 cases to keep their tablet safe from the outside world.

The survey, based on data compiled from more than 50,000 iPad customers, found that the device is broken 3.5 times more often than the original iPad. About 9.8 percent of iPad 2 owners report failure from accidental damage within the first year compared with only 2.8 percent of the original iPad owners.

"Because the rate of accidental damage tends to happen on a straight line basis, SquareTrade projects almost 20 percent of its iPad 2 warranty customers to report accidental damage over 2 years, compared to 5.5 percent of iPad 1 devices," the company said. "Customer data reveals that outside of accidents, the iPad remains an extremely reliable device. Minimal normal use failure rates have even further decreased for the iPad 2."

IPad News Daily said there are some good iPad 2 cases to help keep the device safe, including the Byrd and Belle iPad Sleeve for $48, Templebags All Leather iPad case for $189 and the Book for iPad for $89.