These types of discussions are quite fascinating as you will always get 2 camps of thought on the matter. I firmly believe that the house you purchase is a lifestyle choice with a view to the future i.e. married, number of kids, and location of purchase. I do believe that it is expeditious to purchase a house which will satisfy your current and future needs (probably 10 to 15 years out) and as someone commented you are in the market. However this house is going to cost you over the years in respect to painting exterior/interior periodically changing the colour scheme (you or/and your wife don't like the colour) insurance (home owners) utility costs, rates and taxes (though some rental recover consumption costs from the rentor) extensions braai area, gazebo, swimming pool (maybe), security and a host of ad hoc costs associated with running the property. In a rental situation you notify the landlord when anything fails (scrutinize lease agreement meticulously for your costs) and of course the killer today is CGT on sale
In my opinion buying a primary residence is a must do but you need to be savvy as to how you map out your future investing program, and buying a house may delay your journey, or, you have a slow start. Once you have negotiated a bond then it is prudent to pay it down (but not fully) as quickly as you can afford, and you return to the bank and ask them to re instate the original bond amount over a 30 year period (or to the maximum period that the bank will agree to; also banks like to terminate bond repayments at age 65 - but this is a fallacy as you can extend a bond longer than this - mine runs to age 75). You then use the difference between the outstanding bond and the newly reinstated bond limit to invest in your desired instruments. You then start repaying of your bond as quickly as you can again and then run the reinstatement process all over again. If you want to you can use dividends/income from your investments to help pay back the bond, but I personally buy more shares with my dividends.
So in a sense I am advocating buying a primary residence as opposed to rentals, but more from the perspective that the bond is used as a piggy bank for you investment future.
Also I don't consider my car (recently purchased) or my home as part of my wealth at all though I do take my bond and installment as deduction to my wealth.
When I bought my house in 1980 my wife and I agreed that we would not consider relocating under any circumstances whilst the kids grew up and still I stay in the same house, costs can run away from you if you keep changing residency
As I said there are always 2 camps on this subject it just a matter of working out what you and your family want, because right now with the kids gone our house is a bit big given that we self clean the place