Your combined income is very high. Spore's median household income is about $7k plus, yours is a huge $11k. Now is a good time to upgrade, sell your hdb, get your profits and use it as downpayment for your condo.

Once you upgrade to condo, your social status will go up and people will look up to you. You become an example of success. Don't get old condos even though they are FH. Get those condos that just TOP, there are many going TOP soon. The newer condos are modern looking with nice design n they don't smell.