I prefer the US and state roads. I don't want to fly past everything, I like to take my time and see stuff. I also don't like 80 mph speed limits with people doing 85 + because I travel at about 60 mph.
Bob & Dawn Married 34 years 2017 Viking 17RD 2011 Ford F150 3.5L Ecoboost 420 lb/ft Retired
US 34 is definitely slower than I-80. It goes thru lots of small towns. Not really that much difference in miles. Can't say it's more scenic than I-80. It goes thru Iowa. You'll see corn either route. If you want to see something other than interstate then US 34. I use to live along US 34 and have driven it alot. I've seen that area so it doesn't matter to me to see it again. I'd take I-80.