Gentlemen,
It's not a question of being on-net or not. It is question of given scarce network resources, where would you prefer to use them?
My suspicion is that your vendors think they can generate a higher return by using those resources to serve many customers as opposed to dedicate them to just one.
IP can often a higher return because of statistical multiplexing.
Roderick S. Beck
Director of European Sales
Hibernia Atlantic
1, Passage du Chantier, 75012 Paris
http://www.hiberniaatlantic.com
Wireless: 1-212-444-8829.