...as soon as you do some decent milage anywhere or elsewhere with elevation changes you soon realise how boring a flat circuit is compared
I'm completely with
@massivewangers on this...and couldn't disagree more.
To me a circuit is just a playground to explore my car. I like trying to nail a perfect lap, every entrance, every exit, tip-toeing up to the edge of what's available without stepping too far over the line. That never gets dull.
I've done many other circuits many times back in my Clio 172 Cup, I had a mission to chalk off as many as I could...and then I realised, it doesn't matter where I'm doing what I enjoy doing, just that I'm actually doing it.
Driving and learning. That's all it is for me...and the fact that I have Goodwood on my doorstep to learn on is a bonus.