Most people do upgrade lights. I would recommend nanotuners.com
They have a lot of light upgrades available if you are a DIY'er. Some are as simple as just adding one more bulb, metal halide retros. But their best upgrade is the leds.
I don't have a BC, but I am in the process of building a 28 gallon NC CF
-Quad. I bought a 24 NC hood for pretty cheap and gutted the lights out. Going to install NanoTuners 4.6 led
retrofit in it and install that onto the NC. I'm picking up the NC this weekend and going to be working on getting those leds while gathering other things to put the tank together.