I own Bryce 5 and have no need for a 3d Starter kit (or whatever). What's the cost to upgrade from 5 to 5.5? Also is it worth it to upgrade to 5.5, if 6 is on the way. Normally to go from version 5.0 to 5.5 is a update. Going to 5.0/5.5 to 6.0 is the upgrade. So, I'm confused. I'm I paying for a update or a upgrade? Another thing, I bought Bryce 5 when it was owned by Corel.