More like 30-50 USD, judging by the research I did in 5 minutes (or 20-30 USD if you agree to a used phone).
No, I understand that Americans love to pay several times more for their houses, healthcare, education, coffee and everything else simply on principle, pretending that there are no other options, but you can literally google the largest phone manufacturers in the world and look at the prices of their current starter models.
And yes, we are talking about full-fledged smartphones that are quite pleasant to use, with up-to-date hardware and the latest versions of the operating system. Not some outdated torture devices with zero reliability.