Used turntable market

I have been monitoring the turntable classify on Audiogon and it seems very few actually get sold. Are people afraid of buying used tables? What are the real risks? What are your experiences in buying used turntables and cartridges without actually demoing the unit?

Add me to the list of folks that had TTs arrive damaged. I won't have a TT shipped anymore, except from a dealer in factory packaging.
Yup, it shouldn't be any problem so long as it is packaged properly. All turntables, even new ones must endure shipping at some point. Isn't that true?
People who buy turntables worry about things like the implications of global warming for belt drive expansion. It's just in their nature. (by the way I obsess over a transrotor fat Bob)