The Murray effect: Should one 'enjoy' an investment?

I was recently approached by a tennis enthusiast friend with an investment dilemma. Should a love of tennis with guaranteed access to Centre Court be the main motivation for purchasing a Wimbledon debenture? Alternatively, should all investments of this kind only be entered into on the basis of the potential return on investment? Views vary, but there are really no rules against enjoying an investment while still earning a decent return. That said, such enjoyment can be acquired cheaply or at a price. If purchased purely as an investment, such assets should only be bought by people fo...