Wow, it is always complicated (and rewarding to get points). Looking for the superb Canon 15×50 IS binoculars. The lowest price is on Amazon, but if you shop a little with Chase Rewards Mall, you can find them with 1 extra point (worth about 2 cents per dollar) on Rakuten.
But on Merrill Lynch Mall, you can’t search for this deal (their product search engine isn’t as complete), but Rakuten is an additional 2 points per dollar. So voila, another 4 percent plus Rakuten has its own point scheme as well.
The underlying retailer is actually Adorama and they don’t currently have points with either of these guys, so a pure win đ