Hi Jenna, thank you for your input.
Actually, we are trying to get the auto-tagging rule to work under our circumstances.
Because of the Eloqua limit on number of folders (500 folders) and inability to set advance rules (wildcard, e.g. */product/*), we are unable to use auto-tag for this case.
For now, manually upload might be the best solution for us to be able to segment on the page tag.