[Fomite]

"you may not buy non-instrumentation computers"

This will come as a shock to the three laptops, one desktop, one server and five cluster nodes I have purchased on various grants.

Also the "kickback" as you put it (aka indirect cost returns) vary wildly both between and within universities. For example, we get zero indirect cost returns, but do get money back for unallocated spending if we bring in a higher percentage of our salary than we are obligated to.