Though in economic theory cost should approach marginal cost
Only if it's a very competitive market, and even that effect will only happen over time.
Product differentiation introduces pricing power for individual firms, and depending on the style of competition you think will occur (e.g., Cournot oligopoly vs. Bertrand), you may very well never approach anything close to perfect competition with the small number of firms there are in this market.
Re:A Profile of Zoom CEO Eric Yuan
by dragonwriter on Monday April 22, 2019 @03:43PM
(#19722145)
> Though in economic theory cost should approach marginal cost
...in a perfectly competitive market. In a situation where monopoly rents can be charged (which is what having a moat is about), prices should hit the point where unit price × sales - cost is maximized.
I would be much more worried about competition. Video conferencing has a small moat especially since major incumbents are already in the space