DT - you sound like you are pushing the average cost up!
I ran a very dodgy 10.6 miles in 90 mins in snow and ice last night.
A review of the conditions.
Where there was snow and visible frozen slush it was fine (although a bit hard on the ankles); where I could see no snow it was either completely fine or a death trap and I had a few very hairy moments tottering towards the nearest snow and safety.
No they had those little wheeled ones that fold up and rattle a lot because everything is not quite as tight as it should be - perhaps they never dared do stunts because they knew their dad wasn't maintaining them properly!