This year's ballot in Colorado will include a proposal to exempt real estate worth less than $6,000 from property taxes. As near as I can tell, this would include timeshares worth $6K.
http://www.leg.state.co.us/CLICS/CLICS2010A/csl.nsf/fsbillcont3/D73FEC158A32B217872576A80026B9CC?Open&file=HCR1005_enr.pdf
http://www.leg.state.co.us/CLICS/CLICS2010A/csl.nsf/fsbillcont3/D73FEC158A32B217872576A80026B9CC?Open&file=HCR1005_enr.pdf
FOR PROPERTY TAX YEARS COMMENCING ON OR AFTER JANUARY
1,2013, A POSSESSORY INTEREST IN REAL PROPERTY SHALL BE EXEMPT FROM
THE LEVY AND COLLECTION OF PROPERTY TAX IF THE ACTUAL VALUE OF
SUCH POSSESSORY INTEREST IN REAL PROPERTY IS LESS THAN OR EQUAL TO
SIX THOUSAND DOLLARS...