What do you feel is the best used SACD player?

For under $500 the Pioneer Elite PD D9 J

I love the minimalist look, build quality and it also sounded great in my systems.

For under $100 if you can find it the Sony SCD-CE595 5-Disc CD/Super Audio CD Player.

the original sony sacd player, i believe it was the scd-1.

it is a great cd player as well.

Don't know your budget, but for about $4,000 you can get a used EMM Labs CDSA designed by Ed Meitner. It has the added advantage of making red-book CDs sound even better than SACD.