Since Korg stopped making their rackmount tuners (and not not paying the MSRP for the used gear, which people are asking/getting on ebay), which pedal should I get?

Boss TU-3: new version of the ubiquidous TU-3

Korg Pitchblack: Cheapest, true bypass

Digitech Hardwire HT-2: True Bypass

Your thoughts?