Website photos - use stock pictures or real life pictures?

How many times one comes across a website with photos of individuals that look like models. Websites for dental services, doctor practices, engineering design offices, beauticians and more have websites that show glamorous people in stereotyped pose.
Stock photos can be obtained from several websites on the internet. Some webdesign firms offer their own cache of photos taken specifically for certain work. Smaller businesses, new businesses are more inclined to using stock photos for obvious reasons.
Question is - do you get turned off when you see stock pictures or do you simple ignore them and move on to the content and judge a site by its word content.