I agree with your wife 120%! If you have a cool old chevy that is 4x4 and you want to convert it to 2wd?!
I think the 2wd blazers are cool but sacrifice a 4x4 blazer?! I guess it's just a no brainer in my book because I live in the mountains and I've always wanted a 67-72 4x4 of some kind. I'd rather my truck be a 4x4 any day!