Off (temporary dip doom-and-gloom) Topic:

Further suggestions ref. possible WO party.

As may have said, the timing it for 100K (or whatever figure) is probably difficult.  

Once we are close to hitting a significant round number, most of us will be watching the charts and spending all the time glued to our screens and not interested in organising something in a hurry in any case.

Then there is location - it seems to boil down to 'which side of the pond'.

How about...  

1. Fix a date with a reasonable time ahead in tune with the halving cycle? I am not sure it needs to hit a target figure to work, and we can't organise price in advance anyway.

2. Fix it again (if successful and people want to repeat it) on a bi-annual(?) basis.

3. Maybe hold it in Europe and North America alternately - with the locals hosting it each time (and competing with the alternate, previously held one for the kudos).  Asia /Far east is not ruled out, but I am guessing the majority here are probably based in Europe / North America.

4. If it's a big do, I (personally) think partners probably ought to be accommodated for and thought of in terms of what is organised.