Quote - However, I think you'll be going to it sooner than later, especially with the dsa formats being depreciated and once the duf and dson format gets finalized. Any new plugins and scenes using that format that you want to buy will probably make you upgrade to 4.5.

I try to stay back a version or two as well, but had to upgrade for the supersuit shaders to work without crashing my app. Once 4.5 is released publicly I'll probably have to deliver material and morphs in the new format for the store for any new character.

Since I render exclusively with Reality and Lux now... I'll probably go to 4.5 when Paolo releases a Reality that works with 4.5.  Until then, 4.0 will be my thing.  That and I have enough content now that I could conceivably render for the rest of my 3D life without having to upgrade past 4.0.  As it is, the content that I've accumulated over the years is pushing 150 gigs worth.  My purchases now a very limited.