I was able to obtain a hardcopy brochure on a 2009 model last year when my wife and I purchased our E60 M5.
Earlier this year during the purchase of my E92 M3, I asked the sales advisor for a brochure also and his reply was, "It's all online now. BMW does not print out hardcopies anymore."
A response like this was the same response I received from an Audi sales advisor when I asked for an R8 brochure.
so who knows if they switched to online files??