That is exactly the problem. They are getting re-released solely for the purpose of making more money. Not to contribute to the modern day culture spectrum, but to make more money. I understand that money makes the world go round, and I like money too, but sometimes, a line needs to be drawn, somewhere in between "greed" and "originality".
You do realize that probably every movie you've ever seen in a theater was created to 'make as much money possible' right? Look at what studios are making today.. you call any of that crap art? Please. Better to re-release old good movies than sit through the crap they part together today.