You have spare cash...lets face it MM apts are here to stay like it or NOT changing demographics/lifestyle/acceptance have led to this trend...
..Now the way i look at it $500k MM apt...if u put down 40% DP thats $200k...your mtly mortagage factoring in ups/downs in interest rate..etc etc..is about $1.2k for a 30 year loan...i am PRETTY sure if YOUR NOT greedy achieving this sort of RENTAL is easily POSSIBLE....so in short if you rent for 30 years after that the unit if yours....assuming in 30 years time with inflation/deflation whatever ECONOMIC crap...the price still maintain at $500k...you have effectively grown your $200k to $500k.....isnt that good....and there are many many PLUS points...
1)for example you retire and want a small place to live with your wife..can move there
2)your kid grow up get married need somewhere to get started...you got your MM
3)you have relatives from OVERSEAS who you hate can throw them there
of course the wonderful bros/sis here will all have their 2 views....so let it roll manz....