tiredsadmum did you watch the last series? I'm wondering if you've misjudged what it's supposed to be about. The premise that the Observer are paying for it all is part of the joke.
It's less of a focus on the places they visit and more a satirical, narcissistic, exaggerated version of Coogan and Brydon (although I agree with many up thread that there seem to be some true to life aspects for Coogan at least if you read the stories about him!).
I bloody love it - spat my drink out at the 'gait' comment! 