I've seen people give away older oscilloscopes for free, but it helps a lot to find one locally because shipping a big heavy instrument is not going to be cheap. $80 is cheap for a good scope though, many of those "crappy old" scopes cost as much as a brand new car when they were new and they still perform well. Oscilloscopes are not like computers and smartphones that get outdated rapidly, there are lots of 30+ year old scopes that perform as well or better than brand new gear that costs thousands. You can't buy a brand new scope for much less than $400 for a real oscilloscope that isn't just a toy. Expect to spend another $50 for a pair of reasonable low cost probes. Decent test equipment is expensive but it's an investment that will last decades properly cared for.