"It's unwise to pay too much, but it's worse to pay too little. When you pay too much, you lose a little money. When you pay too little, you sometimes lose everything because the thing you bought was incapable of doing what it was bought to do."
 

"The common law of business balance prohibits paying a little and getting a lot - it can't be done. If you deal with the lowest bidder, it is well to add something for the risk you run. And if you do that, you will have enough to pay for something better."

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-John Ruskin 1819-1900 English Author