I don't know a lot about meerschaums, but if by Bekler you mean Ismet Bekler, I saw one from him for one thousand dollars. So it is a little suspectful.
Where did you find it? The seller may be ignorant about the pipe's worth. If that's the case, it might be a steal. Edit: Don't take my word on it though. There are people who know A LOT MORE than me on these forums.
It would be a good grab if it is in fact a signed Bekler, Im skeptical though, who is the seller, condition of pipe, verify the signature, alot of questions you need to ask