[Advaita-l] Why should Brahman be without form or attributes?

[Suresh]

Namaste,

Let's say Brahman has form and attributes. In what way would it affect advaita? Why can't advaita still be right even if we admit Brahman to be saguna only and not nirguna? Is this nirguna concept indispensable? 

I can understand concepts like maya, avidya etc. as indispensable - they explain the wrong identification of self with not self, duality in this world, and so on. But I don't see how advaita would collapse by rejecting nirguna brahman concept. 

Please remember ... this thread isn't about whether nirguna concept is right or wrong (so please don't post a thousand posts on that and digress) but whether advaita would still be right without it.

Regards,
Suresh