I am pretty set on a BlueStar 36" gas 6 open burner range. But am having a hard time deciding between RNB series or RCS series. From what I understand the only differences are RNB has 2 22k btu, 3 15k btu & 1 simmer burners also gliding oven rack while the RCS has 5 15k btu & 1 simmer burners. According to the quotes I received there is approximately a $1700.00 price difference between the two different series. Can anyone who has these ranges tell me if the RCS is good enough or is it worth spending the extra money for the differences between the two. Thanks in advance for any help!