I remember my colleague from work who said that happiness is linear to amount of money. The more money the more you have vacations, houses, cars. Such view-point is very narrow and materialistic, but some people do think that way.

I remember comparing this to having toilets in work. You will be happy with having at least one in your office. It will be good to have two toilets and it will bring more happiness, but what about having 10 toilets? It will not linearly provide more happiness to the office.

It is good to have enough money to be able to live a convenient life. The rest is up to you. To your goals. To your motivations. Some people will never be satisfied just by having a big pile of cash only.

If you play a game with infinite ammo, infinite health it becomes boring quite easily.