I agree - i'm not happy with the pricing either, but I went ahead and bought it due to the added value of it being an integrated solution.
I wish that they would give discounts on renewals!
Of course you are getting antimalware with kes - does sav have that?
I'm surprised that you can get SAV for $8/year. We hate SAV for various reasons so we've never quoted 500 seats but I was under the distinct impression that SAV was much higher priced than AVG. Are you sure you're pricing is correct and for regular business (not education or non-profit)?
I was always told in the beginning that the maintenance was so we could get updates and new features and patches to the program. It is a lie lie though. ANY really good significant feature update is sold in terms of an add-on that you have to pay a lot of money for and pay for maintenance costs. It is very frustrating.