You should see people running around right now with chains on bare pavement. Talk about chewing up the roads. Studs are nice for those of us who spend time in the mountains and east side of the state. I'm not sure about most of the folks in the Willamette Valley. They'll put them on for the whole winter and often never get any use out of them.
I've wondered about towing my TD in the winter. I see a lot of trailers with snowmobiles in the mountains. I don't think I've ever seen studs or chains on the trailers. ODOT does require chains on vehicles with trailers when chains are required. I guess my only concern would be how light the TD is and the possibility of jackkniffing.