ESP32 devices are still cheap enough but with a less-good ecosystems due to the Pi's popularity. I do plan on picking up a few Pi 2 Ws which are still selling at a MicroCenter near me for $18 with only three bucks of markup just for setting up a Pi-Hole and some other IoT project but yeah, looking at even the Chinese made boards like Raspberry Orange sees prices north of $70 which is just not worth it for something with this capability. At this point, why not just get a refurb'd thin client or mini-pc?

Esp32 is pretty damn powerful for the cost. We have one driving a display and keyboard, speaking and playing synthesize sounds through attached sound chip, driving an ADC over SPI at a high rate and talking Bluetooth to an attached device and talking wifi to the cloud. On a device that costs a few bucks.

You can buy them for very cheap on AliExpress. I spent more on a very cheap $6 soldering kit than on the ESP32 board I had to solder.