Congratulations on that milestone. The next 250 will come a lot quicker.
I believe that someone with even a few hundred SP is going to he very happy down the road. The $100 is just a one year projection....I believe there is the potential for much higher numbers.
It doesnt take a math major to know that there could be rather large accounts even with a few hundred SP if the price hits high enough. Pushing 4 figures might not be totally out of the realm of possibility if things start to take off.