Cameras
Buying a used camera: what actually matters
A practical used-camera guide to shutter count, cosmetic wear, meaningful damage, battery condition, and vague listing language.
Read the guide →Buying guides
What actually matters when you buy used
A scratch is not the same thing as a broken part. A model name is not always specific enough. And “untested” still means untested. These guides focus on the checks that are actually useful before you buy.
Marketplace language decoder
Used listing red flags
What “untested,” “powers on,” “as-is,” “for parts,” box-only, accessory-only, incomplete, stock-photo, and vague-model listings really tell you.
Read the red-flags guide →Lenses
Buying a used lens: fungus, haze, dust, and what actually matters
What to check on a used camera lens, including fungus, haze, dust, scratches, autofocus, stabilization, and mount condition.
Read the guide →GPUs
Buying a used GPU: what to check before you buy
A practical used-graphics-card guide to exact model, VRAM, power requirements, prior workload, physical condition, and testing.
Read the guide →RAM
Buying RAM: compatibility matters more than cosmetic condition
Check DDR generation, DIMM type, capacity, speed, ECC, and platform compatibility before buying used RAM.
Read the guide →CPUs
Buying a used CPU: socket alone is not enough
Check exact CPU model, socket, chipset, BIOS support, memory platform, pins or contacts, and seller testing before buying used.
Read the guide →Consoles
Buying a used game console: check the exact version first
Check model revision, disc drive, HDMI, controllers, storage, battery condition, and online access before buying a used console.
Read the guide →Books
Buying a used book: edition first, condition second
Use ISBNs to match the right edition and understand used-book condition, ex-library copies, annotations, water damage, and dust jackets.
Read the guide →LEGO
Buying used LEGO: complete means more than “the build looks finished”
Check set number, completeness, minifigures, replacement pieces, instructions, stickers, and box value before buying used LEGO.
Read the guide →Exact models
Curated used price guides
Current filtered listings, price context, and model-specific checks for manually approved products.
PriceSift data
Used market snapshot
A small data-driven view of current prices and recent PriceSift price history.
Before you replace it
Repair & Reuse
Sometimes the best used purchase is no purchase. If the thing you already own might be repairable, start with the model, the manual, good repair information, and a realistic safety check.
Repair before you replace →