That's just it. you have to look and see what the avg price in your area is. Because somebody giving you an answer in Alabama would be way off.
Or someone in Arizona. This is absolutely correct. You need to take into account the situation around your area. My truck prices will not be anywhere near your truck prices. I have many times been tempted to get myself a flatbed and start buying trucks here and taking them back east to be sold. I could make a very solid living doing it if I could stand to be in my truck all day long.
For example, I bought my old LB7 crew cab long bed loaded with every option for $9500. I ran it hard for a year and sold it for $17K. Granted I put a few thousand in it just in toys but I still cleared several thousand. I could do this all day long if I had the time and resources.