Convergence with a moving target.
Say LLL.coms move from $6,400 to $10,000 in one year. And say they continue the same rate: +50% per year, for a few years more:
After one year: LLL.com min $10,000; LLLL.com min $390 (about $400, the rest of the numbers are rounded)
After two years: LLL.com min $15,000; LLLL.com min $600
After three years: LLL.com min $22,000; LLLL.com min $900
After four years: LLL.com min $33,000; LLLL.com min $1300
After five years: LLL.com min $50,000; LLLL.com min $2000
After six years: LLL.com min $75,000; LLLL.com min $3000
After seven years: LLL.com min $150,000; LLLL.com min $4500
You get the idea.
I am certainly not predicting this, just carrying the arguement a bit further.
The real question here is where all that money would come from. The internet continues to grow at a rapid rate, online sales were up 20% this Christmas over last year, in an otherwise down market. And when prime internet properties (domains) are compared to prime physical realestate the domain values are trivial. Plus the entire mobile web is still to make it's presence felt in the market, mobile is predicted to be 4 times larger than the PC internet. And mobile puts a larger premium on short domains.
It does look like there is quite a way to go.
Waaaaay too much Kool-aid tonite, don't mind me.