Like many here, I love my RC knives and my Beckers too. And while some feel you are being disrespectful posting this here, I don't. Nothing wrong with an open and honest accessment of why people are willing to pay more for one brand over another. (IMHO).
They are both excellent knives, the BK-2 and the RC's. I don't have an RC-5 yet, but I hope to someday. I can say, at least from my other RCs, and from my Beckers, that the main difference is (to me) is the company making the product, and that while the BK-2 is a great knife, there is nothing elegant about it. It is a brute, beater, throw anything at it, and it will take it with a smile workhorse. But there are times when you need to do more.... delicate (?) work and the BK is a bit heavy handed for that. Just an opinion, but it is mine, and I am sticking to it
You really can't go wrong buying either, and as Jeff has said, anything Ethan Becker has his name on, is GOING to be a quality product. It might be a better question to ask is which is going to get the job done for you? Or be smart and buy both
Jake is right, this WOULD make a great magazine article.
