How will you keep the beer cold! I agree with everything else though.
I don't carry beer, but I tried a few airplane camping trips sans cooler to save weight--didn't like that limitation, at all. I really like having OJ and milk and other perishables on camping trips, other than back-packing trips. I've tried a number of smaller coolers, and I always seemed to run out of ice before heading home. So I sprung for a Yeti cooler last Fall, and it's great--bulky for the amount it holds, but still has ice in it after several days. Only problem was getting it through the baggage door--has to be on its back and then put upright after inside.
But saving weight makes sense, to a degree. For instance, I have a nice Coleman multi-fuel camp stove--and for tailgating or car camping, it's great, but it's unnecessarily heavy (and bulky) for in the airplane. The MSR stoves work just as well, and they're super lightweight.
But I also like comfort, and when I'm flying alone or with my dog, I can afford the extra weight of a large tent vs. a back-packing tent, a cot vs. sleeping on the ground, a heater vs. putting up with cold, etc. A lot of that could be pared down, obviously, and it should be, when you're carrying the family. Especially as you get into higher density altitude situations, the less weight, the better.
That brings up a warning point: If your high density altitude experience is minimal, don't learn about it with a grossed out airplane. It seems as if performance decreases exponentially with increases in DA--don't know if that's exactly true, but it seems that way. So learn what your airplane will do in high DA situations a little at a time--nothing worse than climbing out with your tires scraping the trees as you can barely maintain 50 fpm!
Cary