From a 'gradually adding more reports'- standpoint:
is it possible to add settings like filters, ecommerce-metrics, funnels, etc. 1 at a time, and still have them be applied to the data prior to the date you applied the settings? (have the settings backward propagated if that's correct english)
I can image if GA keeps the raw underlying data this is technically possible.
This would be useful IMO, since it means I wouldn't have to invest a lot of time upfront to learn to build the best possible funnels, etc. but I could learn it gradually instead without being worried of missing out valueable data being created that I can't base my reports on in the mean-time.
Thanks, Geert-Jan