Comparing Topres to Cherrys (and other mechanical switches), I almost feel like Topres are the vacuum tube amplifiers to Cherrys' solid state. They both do a great job, but the Topres feel like the smooth, warm sound of vacuum tubes where Cherrys (and others) have the sharp, mechanical precision of solid-state. Of course, there are other aspects of the switches that differ, even Cherrys differ between types, but the vacuum tube/solid state analogy tends to describe the gross differences between the two.
I will say that I think sixty's response might be accurate to a certain extent, but honestly, I don't let price determine the way a switch feels. I think the HHKB is far closer to a typical rubber dome than the Realforce. I think people that pan the Topre tried the HHKB. If you type on a Realforce, they feel quite a bit different. That said, overall construction can play a big role in the way a keyboard feels.