How about this feature?
A Master Campaign which consists of sub-campaigns of different sizes (same advertiser).
The server selects the right-sized campaign from the selected available list (just like a campaign has media) from the specific Publisher/Zone request.
The Master Campaign would have a global delivery capping for the entire campaign, and a subcampaign table for relative (or absolute) weights/percents/absolute numbers.
This way I wouldn’t have to run separate campaigns for each different zone size campaigns for the same advertiser campaign.
(But if there is a way to do this today, please tell me).
In the Campaign definition you would select either Master, Sub or Normal.
A Normal Campaign would look the same as now.
A Master Campaign would show all the available Zone sizes and have an extra tab for selecting/weighting the included campaigns.
A Sub Campaign would look the same as today, except that you don’t select individual zones and you can add it to a specific Master campaign.
What do you think?