50/51, two kids.
Upgraded from flat to condo in 2006.
Bought 4 bedroom condo for $700k in 2006 now paid up and worth $1.4m.
Combined income $130k pa.

While our income is not high, our home value is high due to good market timing in buying our condo. Our condo appreciated by $700k between 2006 and 2014. If we stayed in our flat, our flat would only appreciate by $300k.

We hope our condo will continue to appreciate over the long run as our condo is our retirement asset. When we retire we will sell our 4 bedroom condo and buy a studio condo so that we will have cash for our retirement.