Those houses are absolute garbage - and yes, I happen to know a little bit about construction. Production, baby. They knocked those out by the dozens per week.
By the way, the person who said the HOA fees are crazy is right - that's the way it is all over Florida, though - between taxes, HOA fees, and casualty insurance (Hurricanes, etc.), if you CAN GET IT, you're doomed on your carrying costs.
This is why Florida is one of the great unwinds of history, right up there with Nevada, Phoenix and other parts of AZ, and many, many parts of California.
The Economist magazine had the best article of all time in 2006 on how bad this bubble would burst in housing - not just here, but all over the globe, including Spain, the UK, and elsewhere - man, were they spot on.
You are watching the beginning of the biggest bubble (70 trillion) popping in the history of the world.
And by the way - these Florida dumps are more like 70% off, not 50% off.