In my case it's irrelevant, since I have a little less spending room than I did a year ago, but I doubt my spending habits will change much. I'm at the least picking up the first round of books (PHB1, DMG1, MM1), and if my group is in love with the changes, I may pick up more. At the least, I'll have the basic set to run conventions with/run one shots, etc. if I don't like it.