"Racing"? lol, I honestly find it really slow. I would have expected that plots would have sold out within a week, max 2 weeks, not 5 weeks.
But most people seem to expect it won't be very special. There are a lot of appartments still being useless, and a bunch of hangars that don't do much. So people don't want to invest in the plots.
However, I expect that, if the plots seem to be good, that in next cities, the real race will start, I expect people to spend the max amount of CLD's if the plots turn out to be worth the investment.