RE: Christmas truggy?
It's been mainly new electric buggy releases...bunches of them. The truggies will likely follow from the same brands that are releasing the buggies right now, but I don't know if they'll be available by x-mas. The mfrs might want to let the market buy up the buggies first before introducing more product, which may mean a delay in E-truggy releases.
You can always pick up a nice nitro roller kit and a good conversion kit to make your own.