Depending on the type of business your income growth is limitless with that initial investment and without the need to continuously look for the next deal.  

I recommend getting a Realtor's license and learn about closing a bunch of different types of deals.There is a limitless (almost) number of articles and forum posts on wholesaling here on BP.  

But I stuck with it, and now I'm licensed, I did my own deal, and I feel I have limitless earning potential outside my regular income . 

Enjoy and good luck, I am learning quickly that with real estate creativity is limitless and due diligence is priceless. 

Theoretically, what you can do is limitless, assuming that you can obtain the data sets to integrate into the map.  

Your options are limitless.

I would of gone to Ken McElorys Limitless event if i would of found out about it sooner!

If you can leverage the knowledge of someone on your team to get you quick and solid advice, your ability to scale would be limitless. 

The opportunities to network and for education are limitless. eXp's mentorship program is a great way to learn the ropes too.

Conversely, because real estate is almost limitless in business model configurations (i.e all the examples you gave and more!)