Well, the upgrade price should be in line with normal arbitrage as done by non owners. If its cheaper to buy the program outright than it is to buy P4pro and upgrade, that's what folks will do. And vise versa. Traditionally, unless there's excess stock to ditch, a company will make the program cheaper than buying the previous version and getting the upgrade. This is what CL has done and it follows the industry method. That said, there is the issue of whether or not P5 is overprice, or underpriced. While the program does have a significant upgrade, and hopefully will vault into the big leagues, its not there yet. And, its a limited program. It poses and animates models already made. Maya, LW, Universe, Max make and animate the models. Poser has to rely on outside apps to make the models, but the animation with collision detection is superior. What this means is that Poser is appropriately priced at this stage. Its high for a limited app, and low for a plugin to anyone who chooses to cater to it. Since it doesn't have a plugin record, other than the hobbyist Vue and the entrepronearing LW, it has to pay its dues. When more high end apps include poser as a plugin, then Poser will begin its ascent from the hobby community to the pro community and so will begin the ascent of price. Ok, now here's another wrinkle in the economics... Many of the high end proggy's like Maya, Softimage, Universe, etc, want their piece of the market place in hollywood. To do that requires two things. First, people who can run the apps, second, cutting edge functionality. Maya recently cut their price from near $20k to about $5k. Why? I'll speculate that the learning curve and competition is causing colleges to teach LW and other apps leaving a shortage of Maya artists. So, by releasing the Personal Learning Edition, they can tap into the hobby community that was otherwise excluded from this, in hopes of producing more users and therefore more qualified employees for the movie companies. Notice that LW recently released a watermark edition and Softimage has a demo cd that can be ordered. Enter Poser, a previously and mostly hobby app. Poser is cutting edge with collision detection and cloth movement and hair growth, etc, and they are coming into a new economy of reduced prices and incentive to bring users into the market place. Put it all together and the price is very well chosen. THere's a lot of thought into the price from what I see and the easy way to explain it is to say that Poser is priced in the Poser tradition. I suspect Kupa hired some high end analysts to advise this obvious trend. It would be the prudent thing to do.