Beautiful analogy sirThey only downside is that you are going to like them and leaving is not easy. Radiums are kinda like sex - you never see anybody who says "I tried sex once in college and it just wasn't for me!" You might not want or be able to use Radiums on every tank, but you will forever know what you are missing. I don't use Radium because I like the more sleek fixtures and 14k Phoenix is very, very close to where most cannot even tell. The new 20k Hamilton is also very easy to like and I doubt that anybody could tell the difference between it and a Radium, other than m80 330w output to 250w output.