Building an app with a very small budget and constantly running into the "Build" plans rate limit.
The project doesn't need the extra features of the "Launch" plan just yet and we can't justify paying $99 a month until we've launched the product and started charging our users, but we could use a higher rate limit while we build.
The option to just pay for an unlimited rate limit or a smaller plan between "Build" and "Launch" that includes no rate limit would be super nice!