Either Auther is fool or he is making us fool. In the second case at the end of 20 yrs we have a asset of worth around 2cr (assuming that after nearly 7yrs property rates become double).therfore after 20 years actually we r creating a wealth of 2cr-0.74cr i.e. 1.26cr. BUt in the first case we r just spending 0.46cr and getting nothing. moreover the peace of mind we r getting of having ur own house is nowhere to compare. therefoe buying own house is always a good deal