the last 15 months I grabbed 3 cards on ebay used all work well.
I have had more problems with new video cards than used ones. In total, I have purchased 150 used / 300 new GPUs over the past 6 years. The new ones had a DOA rate of 2-3% while the used were only DOA 1% of the time.
I received video cards from miners, they had lower hashrate or it crashed during overclocking. Such situations are very common. The end date for Ethereum mining has been announced and the suggested prices are dropping. Perhaps in September new video cards will be very cheap.
philipma1957, thanks.