How much is 2k Robux?

As a cryptocurrency and finance professional, I'm often asked about various digital currencies and their values. However, today I'm presented with a slightly unconventional query: "How much is 2k Robux?" Robux, of course, is not a traditional cryptocurrency like Bitcoin or Ethereum, but rather a virtual currency used within the Roblox platform. So, to simulate the tone of a questioner seeking clarification on this topic, I might phrase it as: "I've been approached with a rather unique inquiry regarding the value of Robux. Specifically, I'm being asked to estimate how much 2,000 Robux translates to in real-world currency equivalents. While I'm familiar with traditional cryptocurrencies, Robux is a new frontier for me. Could you please elaborate on how Robux is typically valued, and specifically, what 2k Robux might approximate in terms of US dollars or other standard currencies?