The Amex black card does have a concierge. It does cost $2500/yr. It does give you extra benefits like free room upgrades, late check out, reservations in hard to get into restaurants, etc.
The concierge is pretty good at finding just about anything (no they will not find you a Rolex Daytona at MSRP or a PS3 for $600) but lets say for example you need to find tables and chairs for a party, you call them, they find it.
Yes, it is just a glorified phone book at times, but it also comes in VERY handy at times.

I believe you have to be invited into the program and this is done by having a one time yearly charge of $250,000. You do not need to maintain this spending, you just have to reach it once.
--No-- I do not have one.. But my business partner does and we use it all the time.


Another little known fact about AMEX, I don't know the exact paramters, but they are really there for you in case of an emergency. For example, lets say you get arrested. AMEX will bail you out of jail. This is especially important if you are oversea's and need instant help. Also, lets say your robbed and need cash, Amex to the rescue.

- So I am not saying that Amex is "all that" but it does provide some insurance and help features that are good to have.

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"When two people agree on everything, one of them is not necessary" - Arliss