LOVE ~Destiny~ and A's impact and longevity

[visionfactory]

I'm looking for any hint or missing piece of what the surrounding of these singles was at that time and nowadays as well...

I'm curious about the impact that had on japanese public these 2 singles. I mean, they were particulary popular at the time they were released or at least it looks like that by looking at their sales... but looking back as for now, ayu doesn't perform those songs that often and on the other side those songs aren't either featured on TV when ayu image is presented.

LOVE ~Destiny~ had a drama tie-in (Don't know if the drama was successful) and it also featured a collaboration with Tsunku who was rather more popular than ayu at that time. It sold 600k+ copies and was ayu's best-selling single to the moment, even Tsunku re-released the song in his own CD single (Was he trying to keep her own discography fresh with ayu's collaboration?). Also I don't know if Tsunku choosed ayu to collaborate with or it was viceversa, they were on different labels so it's much more strange to me that they collaborated together, what is the link between ayu and Tsunku?

On the other hand A is ayu's best-selling single to date with 1,6 million copies sold. But is any of the songs featured on the single as popular as evolution or SEASONS? Even if it's technically a quadruple A-side single I've seen monochrome as the title song in different places, but ayu has performed this song only a couple of times, isn't it? She even didn't performed monochrome at 2001 concerts (The year after the single was released). Also, do japanese people remember that a song titled "too late" exists?

Thanks in advance!