Listen. This topic really has been talked to death all over the web blogs and forums. It usually turns into bashing sealed game collectors who use VGA. Though I doubt it will become that here because of the excellent rules of conduct. But still, my point is that I buy them and I understand the need for VGA.
There are many collectors like myself who see the need and relative security of buying graded games. For one thing, many buyers simply do not have the knowledge of how to spot frauds, cheaters and liars who pose as reputable merchants on many game selling sites. So why not give them a little assurance that what they are buying is a certain very good condition. I say Good for them. I have no problem with it. As for raising prices, as NESman said, you can still buy sealed games for less than 50 dollars, so it really hasn't affected that all that much.
Bottom line, let those who like the process, but the games they like. And those who don't, no one is forcing you to buy VGA games.