To Chaperone's point, take this example:
You are a player spreading from $15-200 in a shoe game with a $15k bankroll, for about a 13:1 spread. What if you wanted to try one of these fancy 40:1 spreads you've been hearing about? If you spread $15-600 because you've been hearing 40:1 is the new thing, then you're not too bright and you have increased your RoR dramatically. However, if you spread $5-200, you have now increased your EV and reduced your variance, which are both good things. Others have pointed out that of course heat is a factor, particularly for places you wish to return to. But, there are places out there that will tolerate it. Sometimes for over a thousand hours, in Chaperone's case. Everyone focusing on the "huge" bankroll requirements is missing the point. Nobody here is advocating doubling or tripling your max bet. That isn't how we get the bigger spreads. It's reducing your min bet on the -EV hands.