Plenty of people have invested or at least followed Bitcoin prices in the past. Its price can fluctuate a lot, so it makes sense to always keep an eye on it to make the right decisions faster. You can always buy a Bitcoin price tracker or build your own. Adafruit has shared a guide that shows you how to build your own PyPortal Bitcoin Display.
The device can display Bitcoin prices in USD, Euros, or GBP. You are going to need a CircuitPython powered internet display, an enclosure kit and a USB cable to get started. The whole thing costs just under $70.