Again, like I said, the first time I ever heard about such a thing. Of course, that does not mean that it would not be so.
And again, doesn't make sense, but, then again, biz aviation training in general does not.
An example, cae built cl604 sim try leasing hour in Europe, around 2000 euro for a major client.
Same cae built sim hour in CL850 (which happens to be CRJ), less than 400 euro.
I guess it is always worth shopping around...