Quick question: where are people sourcing their e paper displays? Everytime I think of picking some up I always feel either I'm paying too much or getting too little guarantees.
Hint: click Application, then e-books.
for prototypes/one-offs, aliexpress or ebay are fun if you ever only need one (haven't had a DOA yet), and if you email the company directly they may get back with their 'secret menu'