It is said that "cash is king" and that people can buy anything with U.S. currency. But, that is not always true and the red hot Apple iPad is a case in point.

It is unbelievable but true.

Apple Computer has come a long way since its old renegade pirate days when it was all about making computers accessible to everybody. Now, it seems the company is more worried about guarding against piracy.

So, your cash is not always welcome at the Apple store.

Diane Campbell can play a few songs on her guitar, but she wants to learn a few more. All she has to do, she says, is go online and download some instructions.

"Different YouTube videos where people would go online and play their music, and kind of break it down into pieces," she said describing her method.

Being disabled and on a fixed income, Campbell held off on buying a computer until the Apple iPad came along. It was small, mobile and perfect for her needs. So, little by little she saved up the $600 she needed to get one.