Your rig would make a maximum of 35$/Day (not including electricity) and that's mining the most profitable coin from coinwarz (right now).
It would take at BEST 88 days to break even.
Just to put it in perspective, these are used items, their value as per your post is worth MORE then the current new price? I'm confused.
I'd be willing to take the 4x cards, through escrow at USD$205/Each. I doubt you'll find any better offers for used cards and that's even assuming they can hash anymore.
Lol, that's just being a dick. $200 for 280x cards? Assuming they can hash anymore? Troll.
Brand new I paid 297$/card for the 280X in November, these cards are used therefore they aren't worth nearly as much. Go buy a TV today, use it for an hour and try and sell it for the price you paid for it. It's a depreciating item.
Your standard TV today doesn't generate any cash flow, therefore your analogy breaks down...