原推：@TheDroneTrainer Thanks so much!
You can see the basic model here or we talked about it in the pricing! (episode 36)
https://t.co/pZsCdknm5f
A really fascinating pricing strategy by @stephsmithio on her e-book.
For every 30 copies sold, the price increases by $5.
In a digital world of 0 marginal cost, scarcity doesn’t exist. Interesting way to add urgency to a purchasing decision. https://t.co/X9QClj0TUX