Below are list of DIY 3D printer price comparison and list of fully assembled or commercial 3D printers price comparison (less than $25,000).
MAT-FAB: 3D Printers: Price / Type Comparison 3D Printers
MAT-FAB: 3D Printers: Price / Type Comparison 3D Printers
DIY 3D printer Prices Comparison (Updated on Dec.16, 2011)
Notes:
The above list is sorted by price.
Source: 3ders