A lot of people are going down the route of well it's like earning x amount and working close to home.
But say you have the option of either getting 50k and having a 50 mile commute, or 20k and a 10 minute commute.
The reason a lot of people do a bigger commute is that there is nothing 'equivilent' nearer to home so sadly don't have that luxury of the choice.
The other option of course is to move closer to your workplace.