Buying them cheap(er) is not a bad idea...right...

So, the logic would be: 30k will be bought cheaper on the private auction, then sold on the public exchange for higher price, resulting in lowering the price?
Is there any explanation/guide on internet how selling of 30k would impact the price - I mean some basic calcs?
Hardly would impact the price. 27k BTC isn't much. It's 0.1% of all that are in circulation. This much is mined in a week.