over 3000 btc collected is very great result! i guess it will be 5K till the and!
6-7 K is really possible.
Without one more round of high bonus, 6-7k is impossible, most investors bought in early days with high rate bonus, more than two thousand btc was bought in this rate. It is similar to decent ICO, Decent was mostly bought with 4-5k btc, and finally raised almost 6k btc. The bonus phase was 50%, and most people invested in 50% bonus phase.
Probably agree with you, most of the investments are in the initial bonus period, which increases the opportunity to earn.