LogFAQs > #962238877

I actually found this very detailed topic on another board about GWTW's release:

https://forums.boxofficetheory.com/topic/20886-gone-with-the-wind-1939-box-office20-million-tickets-sold-in-the-first-year/

It looks like tickets in its initial run were only .75 for a matinee and $1.00 for an evening show, which comes out to $15/$20 in today's money, so not as bad as I thought, but still much more expensive than the average movie ticket at the time, and it would have been nothing but these prices for a year.