Thanks for replying!
But
"A developer license entitles a single developer to install and use the product on ONE machine."
how "Developer license benefits a single developer with many sites"?
if I buy 1 developer license can I install on 20 domains of 20 different machines I developed?
If yes, then I understand the benefit of developer license.
If no, can you show me a case where developer license is better than other options?
I can think of a case where I have one physical machine but running 20 domains of 20 different IPs,
is this the only case where developer license make sense?