Do you believe in Vaastu Shastra?

This is one thing that we when we thing of building/buying a house.
Do this play any role in our life.
Something that hits me is that..........
- If you have 50cent or an Acre of land and you need to build a house then you find people telling that ...its not good here...etc...etc,but what if you have only 3/5 cent and you need to build a small home for yourself.....that time you have on other option.
So does cent.... Money....or availability of land or any other factor play a role?