That would be great to get some opinions from others about that. As we know, mobi-haters would say either $regfee or $0. So we saved them the time to reply. So lets hear from the others...
Here are my predictions:
THREE DIGITS
In sequence (567, 321, 012, etc,):
present: $x,xxx - $xx,xxx
future: $xx,xxx - $xxx,xxx
Same (222, 555, etc,):
present: $x,xxx - $xx,xxx
future: $xx,xxx - $xxx,xxx
No order (729, 084, etc.):
present: $xxx - $x,xxx
future: $x,xxx - $xx,xxx
FOUR DIGITS
In sequence (5678, 4321, 0123, etc,):
present: low $xxx - mid $xxx
future: $low xxx - low $x,xxx
Same (2222, 5555, etc,):
present: mid $xxx - high $xxx
future: high $xxx - mid $x,xxx
No order (7296, 4084, etc.):
present: high $xx - low $xxx
future: mid $xxx - high $xxx