If you have passed the bar, there's a host of cases that liberal lawyers won't touch. Most of your clients would be poor, hard-working, conservatives; but your potential opponents would number in the millions.
It might not pay much up front, but one good win against the land-grabbers, environmentalists, liberal NGOs, etc. might provide a nice grubstake and some publicity.
THe problem with those kinds of jobs are that you can't make enough to pay your law school loans. For instance, on $30K a year, it's almost impossible to have an apartment, car, and a $500 a month loan payment. That's why lawyers don't take those jobs- they can't afford them.