However, I will be EXTREMELY bothered by seeing the traffic on the highway while in Tomorrowland. And I will be bothered by seeing retail shops, motels and chain restaurants right across the street. And they're right. For me, who LIVES for the immersion you get at WDW, I think I may have a big problem with that.
I'm a planner-personality too, and I can tell you've got anxiety over this. But let's break it down.
You can't see out of Tomorrowland when you are in Tomorrowland. You can see the Matterhorn, which is technically in Fantasyland, but that's about it. There are 58 year old trees and 40 year old buildings in your way when you are in Tomorrowland, and you just can't see beyond it. Period.
You will see Harbor Blvd. if you exit the parks, walk a few minutes to the edge of Disney property and then stand on... Harbor Blvd. And you will get a glimpse of it speeding by from the monorail to and from the Disneyland Hotel. Here's the view of Harbor that you pass for a few moments on the Monorail as it parallels the street for 100 yards.
Here's Harbor Blvd. from the pedestrian view, looking from the sidewalk in front of the much-much-cheaper-than-Disneyland-Hotel chain motels that line the street. The monorail is passing right along the perimeter of Disney property, with Tomorrowland and Fantasyland directly behind the wall and those trees.
If that's a deal breaker for you, then I think it's time to reconsider your entire Disneyland vacation, even by paying an extra arm and leg to stay at the Disneyland Hotel. Why? Because your room view at the Disneyland Hotel will probably be of the parks, but it will also be of the rest of suburban Orange County and beyond. You will know you aren't surrounded by Disney, but rather are on a small island of Disney surrounded by Southern California.
Expensive rooms at the Disneyland Hotel have views like this that are reasonably pretty and interesting in the foreground, but there are bank buildings and Hiltons and stadiums and freeways and suburbia just beyond.
It's not WDW, and never will be. And if the Anaheim concept bugs you, then you will absolutely
HATE visiting Tokyo Disneyland (much more mundane just beyond the parks), and Paris and Hong Kong won't be much fun either.