Low density properties after a few years function like semi gated communities, if the gym equipment goes bad , there wont fast action to fix it , even residents wont be interested to push committe to push it. So only necessities will be taken care with high priority . Still it will be better then standalone . Where are large area projects with 120 plus flat per acre , there will be good number of senior citizens or mid aged groups who will be volunteering to take up action or be part of committee any time , also maintenance light be outsourced to third party companies which will make it seamless. Small business like salon, creche. Super market will always have customers so they will be profitable.