Obviously you do not have insurance. Do you qualify for Medicaid? And here is something that you do not know - you can bargain with the doctor for a better price.
Definitely have it removed - it is essential. It is non melonoma and has a low risk of spreading throughout your body but if neglected this can be a remote possibility. And besides, the earlier it is removed, the less tissue they will have to take and the smaller the scar.
You have to have it removed. It is not as dangerous as some skin cancers, but still must be excised, or it will progress.