WOW! Those are some very nice Eureka's Scott. I have the same red model 1470B in my collection too. I love all the 1400 series Eureka's and for as much as I love Eureka's, I have never seen the blue 1489A before. I want to say that the blue 1489A is from around 1987/88 because of the Eureka font on the outer bag. The red 1470 looks to be from around 1984-86ish, I think. Anyway, congrats on some great new machines!
Stephen