A lady was complaining that PS7 was eating up her RAM. She said it was using up 'like 1.5 GB' and wanted to know what to do. She was considering downgrading to some other application. I answered her as politely as I could, saying that you can configure Photoshop to use less RAM, or a smaller percentage of your RAM, but then it would run more slowly. Mine is the only response she has gotten.
What she's done is the same as buying a car with a huge, powerful engine and then complaining because it isn't very fuel efficient, or getting a puppy and complaining that it needs to be fed and walked. There are some things that are the nature of the beast. Complaining about the negatives won't get me much sympathy. If I want to dance, I have to pay the band.