That's what I was going to say too.
Yes, it's nice to see those vacuums; especially the bagged models. But, there's still a lot of bagless plastic.
But, if I was going to time travel, I'd personally like to go in a store and see Hoover Convertibles, Eureka F&Gs, a nice variety of bagged canister vacuums, etc.
That's just me. It seems like we all have our time period, when "things were better/simpler/happier", and we connect with the products that we saw around us at that time. Depending on our age, that time varies greatly.
I think of the 1970s with fond memories, and see it with rose colored glasses. My siblings, who are almost a generation older than myself, saw the lousy economy, fuel crisis, etc.
To them, and older generations yet, the 1970s kind of sucked.