In my opinion, everyone has their own investment area and strategy; nothing is less than others unless we have a profit and people are satisfied with that. Everything has its value because people think it has value; it becomes less expensive when people think otherwise.
You are right that every one has his own strategy but I don't know about the investment area what is your aim. If I talk about my area, most people in my area prefer investment in gold and real estate. In my area very few people know about Bitcoin while no one knows about expensive watches. So people in my area will never invest in expensive watches.
I would slightly disagree with you that nothing is inferior to others. Each thing has its own value but it can never be equal to another thing. Bitcoin, gold, real estate, stock exchange all have their value in their place but they can never equal each other. Some have more profit, some have less chance of profit, some have less risk of loss, some have more risk of loss. In some investments you may get good returns quickly while in others you may have to wait. Therefore, every investment has its advantages and disadvantages which can never be equal in all.