Right around 400 - no pixels for me yet this year but that will probably change next year... If I can get n1ists's color sticks built (highly doubt it), it will add another 576 channels so it's possible I could get to about 1000...
oops I said less than 2000, thats rgb pixel, so i need to re-vote and get back into the i'm greedy camp as I will have 4800 channels, and only 32 of them will be LOR dimmers.