You want to sell me a car better have several pics and a ball park price. Otherwise you are wasting my time and the sellers time.

You can use Kelly Blue Book or NADA to determine the asking price for a vehicle. CarFax is a great tool even for a person listing their vehicle to determine how much your car is worth over/under the list price. On another note, if you are a buyer you should do the same thing. At least the Kelly Blue Book or NADA lookup. Ask the buyer for a CarFax record. The buyer shouldn't have to do all the work, but should know how much they are willing to pay for a vehicle that they want.