Buffer stock for HDB

Today's ST editorial suggested that HDB build a buffer stock to meet contigency demands of flat buyers. I hope no one is going to reply that once there was a 30,000 stock of unsold flats and very costly. And I hope that no one would comment that last year they sold so few flats and sufferred a deficit of $2b, so if sell more and build buffer stocks, the deficit will be even greater. The idea of a small buffer stock is elementary, and no one needs to teach super talents about this. It is only whether there is an intent to want to do it. Who doesn't know that having a small surplus will shorten the waiting time and become very handy and expedient for those who need flats urgently? Like I said earlier, there are many things that can be done to help the people who need flats urgently. The current system is shitty at best.