So not to beat a dead horse here, but back to one of my original questions about Larger diameter rollers. Take a look at this link, and tell me what I am missing here, and why almost all these setups are significantly larger than todays rollers.

http://bikecult.com/works/rollers.html

I guess I could buy an argument that they didn't know any better long ago (particularly the huge drums near the top of the page), but even the Goldsprint competition setup looks like it is in the 7-8" range. What am I missing here... Is ther no benefit to a larger roller drum with some type of added resistance?? Thanks