What is the value of my 2 WD Blazer

I own a 1980 2 WD Chevy Blazer, I don't see them any where I look. Everytime I'm out driving I have a lot of offers to sell it, however I don't know how much it is worth. All other 1980's I have come across have been 4 WD. I was told that they didn't make very many 2WD's and that they are rare. Thanks.