BJs is 4% off the $500 GC. When Chase Freedom does their 5% quarterly (3 month) Cashback on warehouse purchases (it includes GCs), the net savings is 8.8%.
We just time our GC purchases to purchase during that quarter - $456 for a $500GC is a pretty good deal!!
Agreed that Target RC's 5% is good as it covers all denominations, is always valid, & doesn't require a warehouse Membership.....but this is at least one safe option (not ebay, etc) that can save even more