Is it easier to sell mono blocks or stereo amp on the used market?

Mono blocks all the way for listening, I moved from Stereo Mac to mono's and very happy i did.

The only down side when selling is shipping cost and luging two. I feel the mono amps will hold their value longer, potentialy anyway. Really depends on the models but gen' speaking mono amps are the next step up. But being more expencive may reduce the number of buyers. 

Amps are heavy, especially as you age.  Monoblocks are lighter, (but not 50% lighter). 

Not sure aobut selling.

Jerry

Have the models been on the market long enough to compare their selling history on Hifishark? Or to extrapolate from other Macs that have sold over the last few years? (I don't know the answer to your question but I'd think that monoblocks are more niche to the general public and you might have a bigger resale market with single amp--but I really have no idea.)