It may be more of an aesthetic preference, but the pricing signal makes more sense to me on a per-service basis than it does on a tiered internet service basis. Tiered bandwidth plans are inexact - should I buy the 250 MB plan or the 5 GB - and require a lot of thought as to what you will actually use. If the charge is per-service, you know exactly what you're buying with each additional service you consume. That's my thinking anyway.