Do tires make a difference in ride feel?

9000 miles ago I bought my first road bike with Continental GP 3000 tires.
I've changed them out with Conti's everytime they've worn out and never had
a flat, so, given my experience, I really don't have a reason to consider
going to a different tire because of reliability issues. I am curious
though, as to whether different tires provide a different ride feel on a
bike or whether it would all be in air pressure...a Conti would feel like
everything else. I consider reliability a premium issue, so I don't want to
risk a bunch of flats just to scratch my curiosity itch. I figured I would
ask the collective wisdom of the group. Thoughts?