Mobile phones are on sale everywhere from Best Buy and the Apple Store to mini-marts and sometimes even airport vending machines. The act of buying one varies just as widely: Buying outright, leasing to own or, less often, leasing under contract. The plans, fees, and other metrics that go into monthly wireless bills are similarly complex, and can make it difficult to tell if you're getting a fair deal. We looked at costs associated with owning a phone or other wireless device and found several hidden ripoffs. If you wouldn't accept these terms when buying a laptop or television, don't be forced into them for a phone.