Yes, clearly, visibility on national TV must be a bigger factor for most celeb. participants.

They would be well able to afford dance instruction, although probably not with such glamorous and talented people!
And as you and other dance experts on here have said, on Strictly they don't learn properly, they learn specific routines.

I don't 'care' as such, but I am sad that there won't be a four person final when I would have liked to have seen all four left in the final to acknowledge their talent and effort. And I do mind that in each episode since Will left we have missed one extra dance - some of which could have been 'wow'. And made the bottom twos less predictable. So in that way, Will has affected the series quite widely.

I understand he has personal reasons for leaving - I just wish he had considered the whole shebang more closely before agreeing to take part.