It intrinsically builds into you the desire to replicate the game into real life. Same as real life replicates into the game, you see UFC and you want to control Brock Lesner in UFC Undisputed and you want to elbow smash into Frank Mir. All these things are exiting, which is at the core of learning, if you have motivation and excited about something you will want to learn. If its dreary you wont take much in.
One of the most important aspect of gaming is levelling, you want to test yourself against certain situations that allow you to progress. If you are on a linear module designed to cater for all skill levels you will either fail to learn enough important stuff or if you are on the higher end feel less stimualted to learn and so pass along the module course like its a breeze and it doesnt challenge. The role of the teacher in that sense is to try to gauge the level of the course based on their own academic and peer experiences, this is hard when most academics in the field are not teachers first they are content experts.
In order to build these quality gaming simulations takes time, money and experience. All of which poses a major risk especially in this economic climate. It is still something which I would like to triall and if the chance ever came about would like to partake some research on.