You also might want to consider dealer demos and used gear from retailers that offer a money-back guarantee if you return within a certain length of time (often 30 days), for any reason, other than if you damaged it, of course. There is also often a small restocking fee.
I agree! For example: Hawthorne Stero has a used Mojo Mystique XSE. They offer a return policy with no restock fee and I’ve found them to be very easy to deal with.
https://www.hawthornestereo.com/mojo-audio-mystique-x-se-dac-used.html