The rich always appreciate when people give them gifts because people always expect to get from them than to give them.
Often times as much as they appreciates the gift you give them they cant use them or display them if they are common and cheap.

The Rich likes uncommon items and expensive things that can match their home interior and standard.

From research paintings are not cheap especially when you now make a portrait painting of them from a known portrait painting expert... They really appreciate it more because it is an image of them, its expensive and original paintings done with Oil last for generations.

Because Original paintings done with Oil last for generations its a means of documenting the face for their generations yet unborn and its classy.

Who ever presents this gift of portrait painting to them remains in their mind as they see the work beautifully hanged on their wall.