Should you buy a used Sony Cyber-shot DSC-HX99 on eBay?

Yes—buy a used Sony Cyber-shot DSC-HX99 on eBay if you specifically want a tiny travel zoom camera and the listing is in genuinely excellent condition with a return option. It is not a great buy if the price is close to newer or better-supported alternatives, or if the listing has weak photos, no sample images, vague condition wording, or no return protection.

Before buying, check these points:

1. Condition: look for clear photos of the lens glass, rear screen, controls, battery door, ports, and zoom extended.
2. Function proof: ask whether zoom, autofocus, flash, stabilization, video, charging, and the control ring all work.
3. Included items: battery, charger or USB cable, wrist strap, grip, case, and original box can affect value.
4. Seller risk: favor sellers with strong feedback, real photos, and a stated return policy.
5. Price sanity: because the HX99 appears to be relatively scarce and used listings exist on eBay, compare several sold/active listings before committing.

Bottom line: it can be a good eBay buy for pocketable travel photography, but only at a sensible used price and from a listing with strong condition proof.