Stop and think about it. If some one is living on a small pension or Social Security, $5,000 represents eating or not eating. That is the reason I mention Ebay as a possible source. If you are moderately affluent and non-technical, of course, the local professionals represent less risk and better (maybe) fitting.
Ebay is like any other seller. You take some risk. But again let me point out that there are a few Ebay stores with overwhelming statistics on customer satisfaction. If a persons loss is mild or even moderate they could get a bargain from these Ebay stores if they stick to the highly rated stores. Just my opinion…Ed