CISSP exam costs

Hello to everyone,
I have been looking at the costs and ability for sitting the CISSP exam today,
I began looking at the course CISSP® Exam Preparation Training Course
I think i was kind of shocked to find out that to take the CISSP exam it will cost around £560 around $600,
I am not really in much of a position to be able to put that kind of money out in a lump sum like that so was wondering if anyone else has had the opertunity to look into the option of getting funding or sponesership to sit this exam at any point any kind of information would be of great advantage please and thanks in advance