One bad apple gives all sports cars a bad reputation?
I canāt imagine I said that what you described was normal, but I canāt speak for anybody else
Hereās a good link on parasitic drains.
āOthers, probably high-end cars with lots of high-end gadgets, will draw moreā
Youāre entitled to your opinions
But there are several newer high end cars in my area
The owners do not use trickle chargers
And some of the vehicles sit for extended periods
And they start up fine
I understand the scenario youāre describing, but those vehicles that do not start after sitting for several days are experiencing problems. It is not acceptable or normal.
Here is a update on my 2010 Aveo with battery going dead, mechanic told me it was something faulty in my radio draining my battery, so i found a replacement Radio ($75) on E bay , I switched it out in 5 mins and took it back to mechanic to have him test for draw, no more draw , it was the radio car is fixed and good to go ') 
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Good for you for getting the problem resolved OP. A phantom current drain is like any other kind of leak, just have to eliminate the possible suspects one by one until you eventually find it.
I agree itās not acceptable or normal. If youāll scroll up and review what I said above, I doubt youāll find the words acceptable or normal.
thanks george
That seems to contradict what you were gettng at earlier, in my opinion
But letās just forget it 
Fair enough.
Are you enjoying your ābirthdayā cake . . . ?!
Coconut frosting ,my favorite 
now my engine light came on, code saying high voltage at thermostat, its not over heating and I have heat so i dont think i will worry about it
My chevy aveo has the same problem with the battery drain. When I pull the 10 amp odb2 fuse. the problem goes away. This fuse also controls the onstar, which I have heard can can create a battery drain when it goes bad.
Thief canāt steal a car if it wonāt start! 
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I had the same problem and it was my OnStar searching for a signal ( I donāt subscribe). Removed the fuse and it was fine.
Get another battery. My 2009 Aveo original battery would die or just be randomly dead after three +/- years of ownership. The second new battery would also die or just completely be dead randomly the following year. Both checked good at the local auto store, holding a full charge / load tested.
The third new Battery has solved that problem.
This old discussion started with suspicions of an overnight parasitic draw. I think these days you can find a voltmeter/ammeter system that will log data. That would certainly help finding this vague problem.