I'm very interested about that.
If I would have +200$k I would buy one block asap but sadly I don't have that kind of money.
But group buy really sounds interesting.
Keep me updated.
Some people are dreaming too much...you have to deposit 200k to be able to bid. So they can see that you are wealthy enought to bid larger sums. I doubt anyone will be able to buy a 3k bitcoin block for just 200k, rather 1 million +...