Faro,
I know many people renting still now and not having a problem, specially in the Mijas Costa area. As long as your property is well priced you will rent. Obviuosly it is much harder to rent the further up the hills you are. Some properties in the Calahonda and Riviera del Sol area are way past the toll road and no one lives up there, there are loads of empty properties and tones being reposesed, no one wants to live in a ghost town.
If you go to the lower areas you will see that prices are still fair and that properties are renting and selling.
One of my close friends is selling her villa which is 260m² built for under €500,000 and i can guarantee you it will not be on the market for long at all! It is not even with the agencies yet and she has already had a few offers, that just goes to prove that if you have the right price you can make it.
You can always make an investment work if you now how!