It depends on the domain quality. If domain business will be build on luck no one will ever want one character .com, net, org domains, and look now......
But i can say what the peoples who selling and buying domains are so much what in 2 or 3 years this business not be attractive . All the days i getting so much low bowl offers so i sometimes thinking what in this business to much bunny hoppers who thinking to buy 10 times lower market price. Its even not a now days price
But the domainers who able to get that kind of domains from current owners who selling at that price is Masters. More domainers, lower earnings from sales.
This is my theory about all the luck.
The 2. Nd factor is connections. If you know something from godaddy or networksolutions you will take at that price. The deal usually are legal.
And this is real factor, because someone who living in village and have 500 usd for domaining never own something who will sell lets say for million.
Thats the real facts about domaining.