recent news said that IF it cost less because Remdesivir is a stake in the ground on pricing. Remdesivir is only given to those already infected, not preventively.
It's like the old dot com days wehn flip phone retail prices were high and volume projections were high so analysts just assumed the high prices would maintain at the high volumes. In fact, the high volumes were from wireless companies (read insurance companies here) paying steeply discounted prices.