I just bought a 92 with 67K miles on it, the timing belt has never been changed. It still run very good without any problem (I only bought it for a month). However, the timing belt issue really bothers me because if it fail, the repair cost would be about 10 time of the cost to replacing the timing belt and water pump, and etc. So I dropped of my car to the mechanic to replace the timing belt and other stuffs yesterday and I can pick it up today. It costs me about $1100, but I don't have to worry about anything after that. If the issue doesn't bother you, maybe you can wait for even couple year. I think the risk is pretty low, but if it does fail, the cost will be 10 times.
Good luck