Question About Breakdown Of Property Assessement

Ok I have been reading this boards for a little bit..read a book by Ron Legrande and am very motivated/interested in real estate as my future money maker. I am going to be buying his course in near future but for now I am researching on my own. In Miami-Dade county you can look up property assessments online...complete with sattelite view of the house, very cool. I am a little confused though on what the different terms mean...here is a printout of a house. This house is currently FSBO for $235,000 Here is what is in the computers property assessment: Sale Date: 8/2003 Sale Amount: $232,000 Assessment Information: Year: 2003 2002 Land Value: $26,367 $26,367 Building Value: $127,973 $112,325 Market Value: $154,340 $138,692 Assessed Value: $142,021 $138,692 Homestead Exemption: $25,000 $25,000 Total Exemptions: $25,000 $25,000 Taxable Value: $117,021 $113,692 If it has a Market Value of $154k in 2003..why did it sell for $232k that same year? Thanks [ Edited by riot8ap on Date 01/08/2004 ]