HT - JS via Dm
eBay has the iPad Air 2 64GB for $490
These sell on amazon for about $540, depending on color.
FBA fees (before shipping) bring down your takehome to about $510. Shipping will take it down to about $505-$509.
That's $15-$20 on the sale or $75-$100 for 5 of them
So here's the bonus cash:
Start with Inbox Dollars or 5% match from Top Cashback. = $24.50. There are some reports of declined matches, I did successfully match today, but be aware.
2% in eBay Bucks = $9.80
Use up eBay Gift Cards - You can either use eBay gift cards which hopefully you bought at a discount or you can use a credit card that earns 2% which would be another $9.80
You can buy eBay Gift cards for even greater savings.
Overall, you could earn about $65, over 13%, and more if you use eBay Gift Cards. That's over $300 if you buy 5. There are about 125-250 of each color left.