If you happen to be a fan of Vita Coco coconut water, I have a coupon code for you to use on Amazon for $2 off a case: 2BUCKVIT.
I know $2 off a case makes it like $20 for a case of 12, which is still a pretty expensive beverage, but I figure it might be one of those things that you don't get discounts on often, and if it happens to be something someone out there really likes, they will be happy to get any kind of savings on it. I know I have certain products like that, which are expensive-ish, but I buy them no matter what, so even if I only save a dollar on them, it still puts a smile on my face. A couple of products that come to mind: Seeds of Change sauces, Kiss My Face lotion, etc.
What are your "I buy it regardless of the price" items?