* A work of art that's appraised at $10,000, for example, but that's priced for sale at $5000, is not necessarily a bargain. As stated above, a retail or insurance appraisal can be many times the fair market value of a work of art. Always determine fair market value first, no matter how big a bargain the seller makes you think you're getting.
In general the aircraft must be at least 500 feet away from any person, vessel, vehicle, or structure. In congested areas the aircraft must stay 1000 feet above the highest obstacle within a 2000 foot radius of the aircraft. There are special rules for helicopters that allow them to fly closer than these general limits.
Basic Speed Law is drive no faster than it is safe. Minimum speed limit is if you drive slower than this speed you will get a ticket Just like you were speeding, But Impeding the free-flow of traffic. Advisory speed limit is just that an advised speed limit. You can go faster or slower without getting a ticket as long as it is safe to do so.