MRAPs are so cheap you cant afford them. They are free but tend to be money pits and a hassle to get work done one. Any agency that can afford one should and usually does buy a Bearcat since it is built on a Ford commercial truck chassis.
That begs the question do the agencies using MRAPS instead of Bearcats have smaller budgets ?
If so, how does that affect recruiting, selection, retention and training ? If your agency pays less they have issues attracting and retaining the best people and those budget issues may in turn affect the quality and volume of training.
Poorly trained or under trained cops making bad decisions is like a self fulfilling prophecy.