ttb,
Because 20 individual posts, replying to 20 other different individual posts, is easier to read than one huge post replying to all...as you can see.
Just for the record, I wasn't the one to put them all in one post, it was either automatic or Mod'd. Hey ho!
Budg,
I know, thanks!
JT,
Yes, the Millenium Stadium/O2 Arena does have its own pad, it's called London City Airport!
However, given the right passenger, you can land a single just beside the statue in the grounds of the Old Naval College at Greenwich.