I certainly never used a "text equipment" but test equipment
But i buy my used equipment locally at sometimes great prices, i saw a fully working FR-803 for 100bucks from them and the next day it's gone!
I bet that they don't know the usefulness of something that is why some stuff are extremely low in price even for fully functioning equipment.
Here's a list a shop with "PLC" in their company name knows what they sell :
VNAs, Audio Analyzers, Oscilloscopes (SADLY!), Power Supplies, Industrial Automation equipment
and that's pretty much what they know ... they have a BUCKETLOAD of random stuff there probably collected from companies going under or a closure of a spinoff company as such
Don't have time to scout for companies going under (Talking as a student with a 8-5 schedule everyday) and that's a remote possibility sometimes
I was a bit surprised Dave knew about their ebay shop "buy9.99"