UPDATE***
Ok, so I called Apple Customer Relations this morning, and they told me they were going to call the apple store where I purchased the macbook from and then get back to me. Because this may take a while before getting resolved, I guess I will just explain what took place, as perhaps some other users have suggestions as to how to further approach this...
I hope that you are recording date/times of phone calls, names of the people who are helping you, and asking for case ID#'s.
Ditto for in-person dealings at the store.
First off, the genius who I spoke to was extremely rude and insulting. I was showing him the problem and he told me 'dont tell me how to do my job, I've seen way more macs than you have in my time'. Overall, he was very disrespectful and I couldn't believe it. I told him this: on that demo table, there are 5 macbooks. 1 of them vibrates, and the others don't. how is it possible that it's not defective? He told me I didn't know what I was talking about.
Got a digital camera with a video mode?
Go back, videotape it. Don't ask permission ... just walk in and do it.
If your Genius buddy asks what you're doing, simply tell them that you're in discussion with Apple Customer Relations and they wanted to see a video of what you had described to them on the phone yesterday.
EDIT: sorry, didn't see that its a long drive, etc for you. Got a friend with a camera who lives closer?
If things get really ugly in terms of poor resolution, now you have fodder for a YouTube video (think iPhone 300 page AT&T phone bill).
He tells me that they will give me a full refund but that now I was banned from buying macbooks at the apple store. He said that he would sell me a macbook pro, but not a macbook, and that I was banned from the store. I told him that it really wasn't right to be banning customers who have defective computers from the store. I got my refund, and left.
Would have been helpful for you to get that 'ban' in writing. In any case, this is absolutely unacceptable, and I'd make a prompt written complaint to Apple Customer Service, including names, dates, etc, and ask them to clarify **in writing** if you are indeed banned as you were verbally told.
Overall, when a business has a problem customer, they often do have the right to decline to do business with them, but its usually an absolute yes/no and not one that is delimited by what product they're trying to buy (ie, Macbook vs. macbook pro). This sounds to me like a gambit to try to "upsell" you, which if you can demonstrate was a bait-n-switch is illegal in most jurisdictions.
Take detailed notes.
-hh