Overheated, but my question is, is it worth fixing and approx what are the costs involved?

Jusr got done with one yesterday. U've got the answer to ur question. It is finnacial. If investing $1000 is good for u to have a transportation for a few more years. Or a new car with car payment.
Good luck. By the way. Those things suppose to be bullet proof. How can u have a bad head gasket without overheating?. Just curious. What u do to verfy a bad head gasket.

The heat stopped working but the car was still running at a normal temperature. When I got to where I was going I had my friend who is a mechanic add antifreeze, he then followed me home (thought maybe an air bubble), we stopped once to add anti freeze. The heat gauge went up 2/3 of the way but always went back down. The next day I added more antifreeze and ran it for 15 minutes, still didn't overheat but I saw that it was still leaking antifreeze. Last night we did a pressure test and that was the clincher. Also I had read somewhere that if the antifreeze bubbles out while you are pushing down on the gas pedal that is also a sign of a bad head gasket. Have you ever heard of Steel Seal. They have a web site and I am thinking of trying that. Am checking with my mechanic friend first though to see if he has ever heard of it.