I'm more aware than most of every little flaw in each of the... er, 11 (jeez, get a life Andrew!) movies I've made. That's why I nearly always delete all the source files as soon as I decide to release something. Otherwise I'm tempted to go back and tweak things endlessly. But there's more to life than LOMAC movies (so they tell me) and I make so many mistakes I'd be editing forever.
The way I look on it, we've got people like GA producing "fast food" movies. When you want a movie Big Mac, nothing else will do, and the experience is always satisfying... for about half an hour. Then you want another one. :-)
Then you've got people like me providing something with a bit more substance... a scruffy British transport cafe serving all day breakfasts on dirty plates. You might get food poisoning, but who cares because the food's good and lasts you until supper time (depending on the length of the credits).
Finally you've got the Bill et John team who are out there in a class of their own, serving the finest movie haute cuisine on exquisite porcelain from a riverside balcony overlooking la Tour d'Eiffel. You might not eat there very often, but the memory stays with you forever.
There's a time and a place for everything. Just don't forget to tip the waiter wherever you dine, otherwise next time they might spit in your movie soup. :-)
Andrew McP