Comment Depends on if it is a desktop or laptop (Score 1) 183
Desktop PC: -- everything should be upgradeable or replaceable -- especially storage and ram and graphics card, ideally MB/CPU and potentially power supply
Laptop: memory upgradable at a minimum. Ideally, internal storage should be upgradable or replaceable. Anything else is a bonus
+1 for lots of interface slots (USB/thunderbolt/etc.)