Obama bought my vote, should I deliver?

I am a retired teacher in Texas who bleeds Republican. I really dislike Obama and his health care plan, his stimulus, and almost anything else you can name except the death of O.B.L. A couple of months ago I got notice that Obama-care had taken over any of my medical bills over 15,000 until 2014! The reason is the Texas Teacher's Union, even though I am not a member. My problem is that if I vote Republican, there is a good chance I would lose this valuable benefit, but if I vote for Obama I will have problems with my self respect. I have had a stroke and a $40,000 bill already. My insurance paid almost all but the government plan would lower my premiums. Am I selling my vote too cheaply?