Thanks Graham and jbbooks... I think it's right, you get what you pay for ... but we are talking about $2600USD (ouch...)

There isn't any marks or dents on the lens or the glass, just silver particles inside the lens (about 20 or 30 of them)... it just looks ugly for $2600...

The lens is currently with the repairer and he said he will test it for me and give me an answer in 2 days so that I will have enough time to return if there's a problem. But it's a good idea to shoot a roll and see...