To me, it seems almost as if the web dev is saying "if you don't have the latest, most up-to-date, most powerful device/whatever, then we don't want you looking at our ads". Seriously? I thought the idea of advertising was to get as many eyeballs as possible. That way of thinking seems so counter-productive to me, plus I can't imagine the advertiser being very happy with that approach. Thinking back to my days working in recording studios, we always mixed stuff in a way that it would sound good on both a giant audio system or a small, cheesy boom-box, with the idea that we wanted everyone who listens to have a good experience no matter what system they were using. I'm not quite sure why this methodology can't be applied here.