Define the condition
Ask what was inspected, repaired or replaced and whether cosmetic wear is graded.
Check what is included
Missing accessories, packaging or consumables can erase part of the discount.
Compare warranty and returns
Coverage on refurbished or used products may differ from new products.
Compare against the real new price
Use the current normal selling price, not an inflated reference price, when judging the discount.
General educational information only. Consumer rights, tax treatment, warranty obligations and return remedies vary by seller, product and jurisdiction. Use the actual contract/policy and current official consumer guidance where rights matter.