Out of the five scanners I have ( BCD160DN, 780XLT, SDS100, SDS200, BCD436HP) only the SDS200 was purchased new. I actually had two SDS100's at one time as well. I sold one and kept the other..so
I never have had any problems with any of the used or new scanners.
I did not buy any of the used scanners off of ebay. Several were bought in person from the seller. I have had good luck buying from ads on Craigslist.
I was a long haul truck driver and I would look at ads on Craigslist for some of the cities I regularly visited. I found better deals that way as none of the sellers wanted to ship the radio they were selling. Instead, they would meet me at a local truckstop and they would demo the radio and if it worked as advertised, I bought it. I never once was burned that way.
Prices I paid were better than what I would have paid from eBay and no fees.
My wife buys antique glassware off of eBay quite often. So far, she has got some good deals and no issues that she was not able to work out with the seller. So, some things may not be a problem buying from eBay. I am not too sure about electronic items.
James
WD5GWY