I watch the Craigslist listings just for something to do as I'm pretty much a buy it new person. Are 20 & 30 year old welders really worth $2000 and more?

Examples (Charlotte, NC):
- Miller CP-302 mig/stick - $2500
- Miller Welder dela 452w - $2800
- Miller Deltaweld 450 - $2000
- Miller Deltaweld 452/60 - $2500
- Miller SYNCROWAVE 300 - $2500 (no pulse or meters version)

Non-of these are even close to new. Lots of what I see is from the 1980/90s.

Are these prices realistic? Seems everyone who posts these things think so. If they're finding buyers I guess they are I suppose.

Just curious