Grace Richardson24 said:That definitely isn't worth the hassle—he’ll just force you to price your stuff at whatever rate he decides is "market value" if they sit on the shelf for months without selling.
Honestly, your best bet is just to list everything on Craigslist or Facebook Marketplace at a slightly better deal than everyone else (you'll still walk away with more cash than a trade-in anyway), and call it a day.
You're right. Of course, they buy back components at a much lower rate than what you'd realistically get by listing them yourself on an online marketplace.
The one upside is that you can negotiate. Since you're buying new parts from them immediately—which is a requirement, mind you; they won't just hand you cash, you have to upgrade and pay the difference—they are willing to haggle.
In reality, he'll start with a bottom-dollar offer, as any dealer would. It all comes down to how much you actually know about hardware. If he realizes you're an amateur, he will lowball you relentlessly.
Ultimately, it pays significantly less than selling through a private listing.