I've always noticed this attitude from Apple's support in general. I've called up Dell and they go head over heals with their business support but Apple makes acts like it's such a big favor for me. I paid for the support, don't be obnoxious about it.HP's willing to send out parts, as well as offer on site warranties as well (consumer and enterprise systems). Apple really doesn't do this, as they only seem to be willing to send someone out in cases of 50+ miles from a store (and may have other conditions as well, or at least try to make it difficult on the user, as if they're doing them "a BIG favor"). If the user is closer, they tell them to bring it in. Turn-around time seems long to me as well.
The Genius Bar is almost as bad. Show any signs of intelligence and they look down on you. You come in as a hapless user and the treat is so different. I just go in now acting hapless and the treatment is great.