I have used cavass tents with the army for 20 odd years, always found them hot and smelly. For the last 5 my family have used a Sportiva Oddissey dome tent and we have been through some pretty crap weather with that too. I find the dome tent airy, cool and light and easy to erect. The built in floor and good fly screens and zips keep out water and bugs and it has the option of opening right up on clear nights with just a screen mesh over top, its like a big mozzie net, very nice and cool.
If properly erected and banged in with proper pegs, this dome aint going nowhere, wine cask, full esky or not.
I must admit though that I am son to upgrade to a caravan and I am sure lookng forward to that!!
Good Camping all