How is the market in Arizona?

How is the market in Arizona?

I have recently watched a webinar on reiclub featuring Larry Goins. He talked about buying houses for $5000 and selling for $30,000.
The strategy involves making a lot of offers on houses that are priced around $25,000, and then selling them on ebay.
Is anyone familiar with this strategy?
I want to try this in the Phoenix area, will that be a good place to try this strategy?
I noticed that not many homes in Phoenix were on ebay at this price.
What do you think, a great strategy or is it too risky?