* 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.
In the US, the age 60 rule applies only to Part 121 airline pilots. Part 135 and other commercial operations have no age limits. That may change, but so far it hasn't. In fact, there is a movement to raise the age 60 limit for airline pilots. There is no evidence at all to support the limit from a safety standpoint.