said by btB :That is probably the point. Make the game a little more of a speed-oriented, while making it a little less 3rd yards-and-a-pile-of-dust. Those who favor the move likely think that with the wider field, there would be fewer cars in the pileup.
Honestly if such a change is made, my guess is that it would be for monetary reasons just as much as it is for safety reasons. Monetary in that owners are convinced that medical and insurance costs would be noticeably lower. Likewise, the owners would do it if they thought it would reduce the chance of losing huge chunks of change due to safety-related lawsuits in the future.
The point is to make the game go sidelines to sidelines more which is a slower pace then goal line to goal line.
Your right the move is all about money. Medical, insurance, and even lawsuits are all valid points but not the main reason. The biggest reason is to keep players health so they play longer. If Ray Lewis could have played 2-3 more years that's a ton of extra cash for the league.