Hi, all. I'm going to ask a blunt question: is it worth upgrading to Bryce 5 from Bryce 4? The only new features I've seen/read about are the tree editor and networking capability. I'm not running a network, and there are plenty of tree models out there, so other than those two features, what does Bryce 5 offer that Bryce 4 doesn't? If that's all they've added I'd rather sink $150 into something else. Thanks in advance for any info.