I just did a side-by-side order of a video encoder (Amazon and B&H). Long story short, I went with B&H because--while the price on Amazon was originally cheaper--I paid less as I don't have to pay taxes and I don't have to pay for shipping to get it here on the same day (free two-day shipping compared to $20+ two-day shipping).
I've used B&H many times before. I wanted to check multiple places to make sure I was getting the best price. I'll save myself the time next time and just shop on B&H!