I think somewhere back in the annals of Bismarck's forums there's a thread asking if people wanted an Allakhazam linkshell. If I remember correctly, some expressed mild interest, but most people were of the opinion that "I'm too attached to my current linkshell as it is. I'd take a pearl, of course, but it wouldn't be my main linkshell," or something along those lines.
That being said.
If you create an Allakhazam linkshell, I would, of course, take one. But it wouldn't be my main. ;)