In many countries, homebuyers have no alternatives but buying off-plan. Off-plan properties are more affordable than ready-made and second-hand properties in the developed countries. The housing shortage in some places, such as Dubai or India, drives homebuyers into the off-plan construction market.
Now global investors and homebuyers continue to take risks of off-plan development which may end up with incomplete houses and lost money. This situation is common in Russia and the BRICS countries where the INTRO system development was initiated.
Most of people are buying construction houses because they don't have spare time for construction purpose and moreover if they buy empty land there is lot of allegation approaching to them. So every person is thinking they don't want to risk their money by just throwing them on off- plan investment.
A lot of things depends of how much money the person has. Not everybody has enough money for a ready construction.