I agree, why wait! I couldn't when we pick up ours less than 2 months ago. We have been out three times already. If you go where there is electric hook up a $20 ceramic heater from Walmart (many shapes, sizes and colors) along with the insulation afforded by the tm wall can do most of the work heat wise. It got down to 39F at night this last trip and I did have the gas furnace thermostat set to kick in if the electric couldn't handle the load. It did kick in once or twice during the night but for the most part we heated with campground electricity vice our propane tanks
That said, electric blanket on the bed was nice too, although we kept havinb to turn it down because it was toasty in our TM!
Bottom line, you can camp in most weather in a TM. If you live or camp where there is a chance of snow from what I read in this forum make sure you have a broom handy incase you need to brush the snow off the lower shell as you close everything up!
Bill