I realize this is a very old thread, but the recent thread about Hillbank pricing got me thinking that I should probably update it, once again.
To date I have tracked 428 SPFs for sale (mainly private listings, not dealers). The average asking price across all 428 cars was $56,744 USD. Here are the average asking prices broken down by model year:
1992 - $57,500
1993 - n/a
1994 - n/a
1995 - $40,496
1996 - $52,257
1997 - $44,289
1998 - $45,543
1999 - $47,326
2000 - $51,273
2001 - $49,769
2002 - $52,600
2003 - $55,709
2004 - $54,701
2005 - $58,925
2006 - $63,342
2007 - $65,912
2008 - $61,195
2009 - $72,283
2010 - $68,783
2011 - $76,950
2012 - $84,888
2013 - $84,466
2014 - n/a
n/a - $56,167
The greatest number of cars were 2005 models (66), followed by 2000 models (49), then 2002s (47), 2006s (41) and 2004s (37).