I have posted for sale my 2016 CSP3 on US Audio Mart.  Asking price $1361.43. It is a Base model with the Cherry base upgrade and the 1/4" and XLR combo upgrade. Still using the original tubes, just under 500 hours of use. I have conservatively listed the condition as "Very Good". There are no marks, scratches, dents on the unit.  Pics are posted on USAM.  Cheers!