Top used turntables under $500

Iam entering the turntable market and have a budget of 500. There are many used tables on the market, I have a B & K pro10 sonata preamp with McCormack DNA1 amp.

Must haves: great sounding without constantly repairing or tweaking. This may remove Thorens players?

 That said my list includes 
Micro Seiki DD40 
sota
realistic 420
Others?????