Agree with Gator even though we are rivals.
On the other hand, people, include me, generally don't want to put too much
time into something that might not affect them. Let's say, SO this year (
2012) is 40k. It would digest all 2008 and some 2009. Next year (2013), same
SO, EB2c would be 2011 or even 2012. Everyone would be busy at changing
jobs, etc. However, if SO turns out only a few thousand, long delay would
create one or more Pxxxx.