I see lots of Plus-Size Sections and Petite Sections as well as Regular, but very few shops now have a Tall Section.
And what there is in 'Tall' is completely shapeless. I'm tall, but also have a small waist and decent sized hips. I want shaped clothes that go in and out and emphasize my shape, not shapeless things that hang. Which seems to make up the bulk of clothes you find in Tall.
In Next, none of their nipped-in-waist style blouses and jackets are featured in their Tall Catalog, only shapeless, loose-fitting rubbish (oh I forgot to say -they don't even have the actual tall clothes in any of their shops).
Unlike Petite! There's a whole range for them (and why isn't Petite called 'Short'
Why do they get the 'naice' name?) 
But that's a whole other argument.
Somebody did a survey on here once, and there were a LOT of ladies 5'8 and over.
And people are being born bigger and taller. So why are we not being catered for?
At the moment there is only LTS and possibly one or two other shops, that seem to cater mainly for 20 -30 year olds.
So there is definitely a fantastic 'opening' in the market for some clever person (with money) to make a killing and clean up.
How do other tall ladies find the whole shopping experience?