In message , David of Broadway
writes
I can only speak for Americans, but we tend to get very little vacation
time these days.

Yes, amongst Americans (and possibly Canadians) that's certainly a
factor and an important one.

Furthermore, the chance, in itineraries to "see" lots of places is a big
attraction for a lot of casual visitors. The fact that they don't
"see" them long enough to enjoy them only becomes apparent when they're
actually here. I see this disappoint more than a few people for whom a
day or two to "do" London is all they get, along with 90 minutes in
Warwick Castle, an hour of two in Stratford or Oxford and so on.
--
Ian Jelf, MITG
Birmingham, UK

Registered Blue Badge Tourist Guide for London and the Heart of England
http://www.bluebadge.demon.co.uk