Success of Niche Adsense Website??

This is very brief post. I will measure a success of small niche adsense website. In terms of CPC, Traffic, Competition.

Your Small Adsense Website is Successful??

Webmaster usaually make small niche adsense website. In which they add few pages linked to each other internally. They seldom update these sites. basically these small niche sites give these webmaster small income daily. like few dollars from adsense or others.

In my view your small niche site will be successful, profitable and earn cash regularly only if:
1) Your adsense site has High CPC, high traffic, less competition.
or
2) Your site has High CPC, High traffic, more competition.
or
3)Less CPC, High traffic, less competition
or
your website still profitable if you have
4) less CPC, less traffic, less competition.

But what if you have :
5) less CPC, less traffic, More competition.

so, select your niche carefully before lauching your website. Later you realise that your adsense website is successful in terms of revenue or not.