I was looking at this software on ebay and I'm pretty amazed at some of the prices being asked.
I was also surprised that there are so many boxed cd versions around, since I would have thought that most people bought this sort of software as a download.
OnOne are soon to release Perfect Photo Suite 8 and currently have it on special offer to pre-order at $179.95 for the full (stand alone) version, and $129.95 for the Lightroom/Aperture plug-in version. These work out at £111.36 and £80.42 respectively (at today's exchange rate), which is cheaper than most of the eBay prices, all of which are for earlier versions.
I'm testing the beta version of PPS 8 and I'm quite impressed. It's a definite step forward from PPS 7.
I just can't decide whether I need it in addition to my NIK and Topaz plug-ins.
One thing it allows is the use of layers for things like background or sky replacement, which would be very useful to me, since I don't use Photoshop.