1. Not everyone has 4 cards in each computer. I have a couple of rigs that I am running with only 1 card in each of them, simply because that is all the motherboards will support (and I don't want to mess with trying to get a 1x slot working).
Any miner should look at all the facts before they step blindly into mining. If you decided having a rig with 1 card in it was a good idea that was your mistake. All of my rigs have 4+ cards in them to make the most out of the electricity I'm using from the mobo, hdd, cpu ect.
2. Not everyone has a basement. I don't. Actually, there's very few homes in Oregon that DO have a basement.
If a basement is not an option
3. Yes, I could open the window, but I don't want to. I'd rather use A/C, because I get very uncomfortable in temperatures above 73F or so. I also have pretty horrible allergies depending on what plants/trees/grasses are letting off their pollen.
That's a choice you made that doesn't mean you cant do it. You cant complain that electricity is high and choose not to do what you can to lower it. Either suck it up and open a window or don't complain because your electricity bill is higher.