We are at the same stage. To be honest I think you are being a bit harsh.
Our children are on lists for schools all over south west london and I think Broomwood has given best value for money so far!
We have been around the school on an open day, been to the presentation and chatted to various teachers but have yet to pay a penny. Entry on the provisional list is (as someone else said) free.
Whereas, we have shelled out a small fortune in registration fees to various other schools purely after seeing their brochures.
Before anyone asks I have no connection with the school save that I am looking at it for my DS and am intrigued by the rough ride it seems to get on a lot of chat boards?
Also (and I will probably get hollered at for this but here goes anyway) if you are considering paying the fees for Broomwood, Hornsby, Finton etc... then Â£100 really shouldn'y give you too much of a headache