Good question if you own a home - Pay mortage or invest?
Our home is a modest 4-room HDB flat we purchased a year and half ago. Not wanting to overstretch ourselves financially, I insisted on getting a place we could easily afford versus just barely affording and maxing out all our CPF contributions for the loan repayment. I’m pretty much of the opinion that with the crazy prices of homes now, it’s silly to engage oneself with a HUGE loan just for the potential of selling it for profit many years down the line. Its like gambling with being bankrupt or being rich eventually. Of course, if one has the funds to pay off mortage loans for 2-3 years before a purchase, please go ahead and get even richer 
Back to our home, with HDB’s 2.6% interest on a 30 year loan, it definitely makes it also a lot easier to shell out the $657 in loan repayments every month. At this amount, even if one of us should need to take a break from working, the other wouldn’t have any problem supporting the loan. Taking into consideration this figure and our cashflow, I’ve also set aside an additional $300 a month towards the repayment of the loan. After about a year and a half, I’ve been wondering about whether to keep it invested in a higher yielding instrument (have yet to find something suitable) or to quickly make a lump sum payment (Dad advises against it).
Is it better to invest or to prepay a mortgage? Neither answer is wrong — there are advantages and disadvantages to both.
Source: Ask the Readers: Is It Better to Invest or to Prepay a Mortgage? ∞ Get Rich Slowly
After doing some reading on the topic, I came across a great research article at Get Rich Slowly that mentions the various advice from financial planners. For my own case, liquidity is rather important as running On9 Systems is pretty much like having a kid who needs the occasional big expense/investment. Kinda funny how couple of years back, I wouldn’t really be thinking so much about finances whereas nowadays, everything goes into Microsoft Money I guess the best option would be to save (more), make sure emergency funds are well stocked for both of us and to try not to make big ticket purchases for the time being (like getting a car or even moving to a bigger place).