I've seen pictures, and no matter how good they are, they never truly show the difference. If this is a concern for you, I would recommend you make that trip to your local Apple store, BestBuy, or other authorized reseller.
Honestly, if you're about to make a $2000 purchase and want to be SURE, then it will be worth it.
To humour you, here's one posted elsewhere on MacRumors:
This one really shows the glare on a glossy, and was clearly taken to show that glare. However, I don't know ANYONE who uses their computer at that side angle. I have a glossy MBP, and I love it.