Computers are actually the more competitive electronics. Probably because they're easy to acquire, refurbish and transport.
Refurbished home appliances like washers/fridges/dryers/dishwashers/ovens are a good product to sell, there are lots of small shops that buy dozens or hundreds of them for resale, and of course, lots of individuals furnishing their own place.
Energy efficiency for them is not going up anytime soon, they've been stuck in the same ratings for more than a decade. They're simply as efficient as possible already.
Liability and warranty would be handled by the resellers, and if agreed, by us. Mostly by return and replacement, but it could be feasible to create an on-site repair service. We can provide the necessary parts, too.
The thing is, a properly fixed appliance will last just as long as a new one. In fact, the failure rate on used electronics can often be lower - newer models that use a new internal design fail more than older, "proven" appliances. The saving grace for them are the warranty and return policies.
Customers will still give 4-5 stars even if their first purchase was a dud, but it was swiftly replaced with another one. That always surprises me, btw. It's like, "oh my new Indesit fridge was DOA, but they replaced it the next day. 5 stars."
Anyway, a big downside is that transportation costs are rather high. And they can only be loaded by forklifts with special attachments, or several people at the same time.
However, the more thoroughly they're checked, repaired and cleaned, the fewer returns, the less money spent on transportation.