digit said:5K is not really a big deal considering the cost of living. If you earn 5K and is the sole income earner, that sum isn't that big. I think to have a fairly decent (not rich) life in S'pore, you'll need at least 10K in combined income.
$10K per mth...

then I'm under decent ..

IMO, I believe is how is u spent and arrange your lifestyle, not the money decide ur spent and lifestyle.
you can earn alot of but load of mortage to pay. No live to spent
On other hand, you can earn lesser but enjoy life.
money not = healthly life
money not = less problem