Quoting multi-site business for SEO/GP

Hi, I am having a meeting with a multi-site offline business. How do you quote them for SEO/Google Places work, taking into account multi-site. I am thinking to provide x% discount after the first site. My thought is in reality it gets a lot easier after you do the first location.

Any ideas are very much appreciated.

You need to come off like you know what you're doing, offering a discount automatically puts you in a situation where your fees are negotiable and they might be able to take you for granted. IMO quote them 1 monthly price for the entire thing. Instead of providing a discount, tell them that you're starting off with the discounted price and your prices can increase depending on the amount of work you need to put in.