all valid points and different people look at business from...

all valid points and different people look at business from different perspective
I like to spread my investment over many business I like, it hard to predict where the business will be in 10 or 15 years in the future and that usually my time frame.

many times in the past various business that I thought would not do well end up doing exceptional well and vice versa
so it hard to know which one will be the future darling or winner. It is a risky business to bet on a few stocks instead I bet on dozen or two
on the one I like, they all have their pro and cons if you sit down and go into little details.

I usually look at the business model and its future prospect If I like it I throw money at it, out of 10-20 I only need 50-60% of them to do well then I will be very happy. The one that do well usually end up with multi baggers any where between 3-20 baggers and the lagger it may lose 50-60%, so for every one that do well it can pays for 4-5 laggers.

it is a number game and risk management and so far I am happy with it, there is no right and wrong way to invest if you do your research, it all up to individual risk appetite and risk management.