Some businesses are created with a purpose to getting a higher value once sold. For example, real estate is a very promising sector where plots are bought, apartments are constructed and then sales made to get very high returns.

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This is my ultimate goal.
I think this depends on what you want. Some may want to do that, some may want to pass the business on to family because of all of the time and effort they've put into building and growing it.Is it a good idea to invest time and money in a business with the intent of selling, and would you do it if you had the resources?
Like I could possibly see myself running my own business and then passing it down to family. I could also see myself selling certain apps. Of course, if my business got big enough and made enough money, I could see myself selling it -- for the right price.
That's something else you have to consider. You've got to have a certain level of discipline if you decide to sell. You might not want to take the first offer. You'll have to know the market, so you can know if you're lowballed on a price. Sometimes even when a price is enticing, you should say no. I've heard of that happening.
Some people won't sell below $x dollars, some people won't sell at all.