OT: Photoshop CS4 upgrade overpriced
I have Adobe Photoshop CS3 Creative Design Premium and can't decide if I should upgrade to CS4. It seems to me that Adobe's asking price of $600 for an upgrade is "over the top." Will I get $600 worth of improvement if I upgrade to CS4? I'd be interested in hearing from those of you that have upgraded to CS4 if you think the upgrade was worth the money. $600 is 2-weeks of work for me and I am loath to give it to some Silicon Valley wonk so that he/she can continue to drive their Porsche or BMW whenever they want to.