It would appear that the broker boom of 2011 is all but gone, you just done see an influx of car shipping companies like you have in days past. The larger ones remain and the smaller ones seem to eek by. 1-2 man owner/sales reps have recently proved to be a popular business model due to rising overhead.
Some companies buy leads, some use Uship and a few try to market small car dealerships. I know one thing, right now does not seem like a good time to open one of these businesses. Lead prices will continue to rise and smaller companies will trickle away slowly but the big 20 will remain, hammering it out day by day.