This is real world, most people in the world actually buy products w/o ever "test driving", ie. you want to try a new soda pop, you buy a can, you don't "test drive" before you buy.
He didn't need to "test drive" because the equipment satisfied all of his design requirments. That is a true "low bid is good bid" a low bid is only good when you know your specifications that you want. If the product satisfies the specifications you desire, and the price you desire, then it is a good low bid. Often people look at the price, and fail to look at the specifications. Thus resulting in an acquisitions that people are not happy with.
The good professor knew what he wanted, and knew how to achieve what he wanted. This is also the beauty of why a unix based OS X system. He didn't need to learn a new language.