Once I saw a VTTS display and saw it was a shadow of the RAF displays of old (to preserve fatigue and engine life presumably) I thought 'what's the point?'.
There must be many younger folk around who have only ever seen a VTTS display and think they've seen a real Vulcan display; they have not!
They should give as many 'balls out' RAF-style displays as the engines and structure will allow (even if that's only one show!) just for those who've never seen one, then retire the old girl to a museum. What they do instead, pussy-footing it around the sky to eek out its life, is completely pointless.
Except it provides a nice cosy income for certain individuals......