Lucy,
I can only speak for me. So often yellow seems as ordinary as it comes- even to a negative. My mind likes extraordinary. It is that simple. In flowers I love extremes. I love the palest and the coolest and the other extreme of the most intense and hot colors. Just do not enjoy much of the in between stuff. Again, just speaking for myself. A yellow that I would like would have to be intense and have substance to the actual flower petal material in order to give it the presence that my eye appreciates. It is one of my own limitations of appreciation. By the way, I have two seedlings that are yellow and neither of them have I been able to destroy or really embrace. That kind of sums it up. This very morning I looked at one before going to work and I imagined myself pulling it out and being done with it, but I just could not do it.
K