Gift cards provided by American Express were a, called by some, reputable source. You have no protections at law with gift cards except the goodwill of the seller/vendor. Do some research and get up to speed on the current state of gift card fraud in the US. Purchase at your own risk!
I stopped using the sites with used gift cards due to the links to fraud. I'd previously purchased them and used them within 24 hours to be sure, but now don't bother (I never personally had any issues though). This eBay seller is one that sells thousands of Lowes cards at a time, which are all new cards, so many of the risks seen with buying from CardPool, GiftCardGranny and other outlets are not present.
There is still the risk, as with buying the cards from Lowes directly, that if Lowes went bankrupt tomorrow, all giftcards would be worthless as you're an unsecured creditor. So only buy what you can afford to lose, and only buy what you plan to use in the next couple of weeks/months, and if you were to buy and return, you'd be happy getting store credit back.
If that's too much risk for a 10% savings, then just don't buy them and pay at Lowes via other means.
Sometimes they have a limit of 2 cards per eBay account, but if there was no limit, I would have no problem buying $10k worth if I was about to spend $10k on a new kitchen or something
the following week. I'd put the transaction on my credit card, and get some protection there too.
But again, as with all Hot Deals, they are optional, and people are free to use them or not. I have my three cards, and it's not like my cards become worth more if more people buy Lowes cards.
My 3 cards will likely be used with some $15 off $50 vouchers (purchased on eBay) for insulation and sheetrock for my garage. $500 at MSRP, = $350 once I use the $15 off $50's, and then I pay with these cards, which cost me $270 (less my 1.5% cash back), and I end up paying about $320+ tax for $500+tax worth of supplies to complete my garage. Thats a combined 36% off MSRP savings!!! And that can be combined with specials too.
Thanks,
-SNS