Don't want to be a wet blanket, because it's great they're on multiple sites, but can we talk about the terrible price? Over $2/sponge?
$15/6 vs $8/6 on HD.com (+$6 to ship but ship to store is free)
$7 difference seems high for Prime shipping.
Honestly, I think Amazon has much more sales potential for us than HD.com, but that's not going to happen if the price isn't right.