Niche keyword selection is the core of your entire niche-site-money-making project which someone would argue about how the SEO tricks especially for backlink building rule the game of ranking on Google. The fact is you can easily hit the first spot on the SERPs with the right keyword even though there is no or just a few backlinks, on the basis of which, combining with high conversion rate, you would be counting your money. That is the charm of niche keyword and also the reason why people are in hot pursuit of them.
I have laid out my intention over and over again that I am so inclined to get my first niche site up and running via free site building platforms and keyword research tools. If it works as I expected, then I would take further steps to sweeten my pot.