The system works like compound interest, earnings should ideally keep increasing for a long time to come.
This is the golden nugget@svkrulze that most many miss. Everything we do on here does compound. One should make more the second month than the first....and even more the third than the second.
As long as the activity is consistent and the focus remains the same. Each SP that goes into ones account makes the VP worth more. This gives one greater impact on the entire ecosystem. A rep of 25 a month ago is now 45...an account of 15 SP is now 40 SP...etc...
Plus we get the compounding effect from the growth of the steem blockchain itself.