It's an offshoot of the internet generation. These are individuals who rarely conduct business face to face, and consider other people's effort and time disposable. You might as well get used to it. Some will shop around and jump on an item from someone else if it's 50 cents cheaper, regardless of the help you provide.

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1985 380SE Blue/Blue - 230,000 miles
2012 Subaru Forester 5-speed
2005 Toyota Sienna
2004 Chrysler Sebring convertible
1999 Toyota Tacoma