Yeah the cheapest I'd ever recommend anyone go is probably about $100 for one with an analog video signal.
HDZero video with ExpressLRS control link is the new meta though. Off the shelf drones with this setup start around $180 or so now, not including the controller or goggles.
If anyone is looking at getting into the hobby, I'd recommend getting the EMAX tinyhawk 3 kit to start. It comes with everything for about $270.
I really wish I would have shelled out a little extra for the Fatshark goggles with the removable receiver back when I bought mine. I'm pretty sure you can swap it out with a digital receiver, but I didn't do that, so I'll have to buy a whole new headset to go digital.
Ah man, yeah the switch to digital can get expensive. I got lucky and bought the skyzone cobra x goggles when I first got into the hobby - they have an HDMI input, so all I needed to buy was the HDZero adapter. Still pricy but half the price of the HDZero goggles ha
I already spent hundreds of dollars on my analog goggles, and a bunch more on analog VTX's, so I'm just going to stick with analog for a while. Especially since prices are way higher than when I got into the hobby several years ago.