Unfortunately, we hear stories like this all of the time. And I'm sure it happens in nearly every industry.
A potential customer used our online chat today to ask about part for his 2012 XUV 550 John Deere Gator. His local dealer quoted him $740 for a high capacity alternator, flywheel and regulator. The customer had the part numbers so I double checked them for him because it just didn't sound right. He had the correct part numbers, but the $740 still blows me away - and that was just the parts, no installation.
John Deere Flywheel MIU13341 = $161.89
John Deere Alternator MIU13342 = $98.11
John Deere Regulator MIU13343 = $36.95
Maybe my calculator is broken, but that comes to under $300 in my book! As someone who has 'bled green' for over 50 years this type of story burns my backside. Grrr.